free flighted parrot – Pamela Clark, CPBC

Star Earns Her Wings

By guest blogger and free flight expert Chris Shank

“Wow! There she goes!” I exclaimed as I watched Star, six-month-old parent-raised, Bare-eyed Cockatoo, take to the sky for the first time. It thrilled me and racked my nerves all at once.

I needn’t have worried. Thanks to her parents, and the flight ability that nature has bestowed upon her, and, humbly, a pinch of training from me, she enthusiastically put on her big girl wings to give that great big sky a go.

Star’s Preparation

Star comes from a line of trained, parent-raised free flying cockatoos. Her grandparents, parents, and cousins fly at Cockatoo Downs. It is only natural that Star carries on the tradition. To do so, though, she needed preparation.

Her education started as a fledgling. She grew up in an outdoor aviary, exposed to all that the outside world has to offer. She learned to trust people. She learned to forage. She learned flight skills. She learned proper cockatoo socialization manners. In short, she learned to be a cockatoo living in captivity.

At six months of age, I felt Star was ready to free fly. Part of that feeling was intuitive, and the rest was from the confidence I had in her training; training not just from me, but more importantly, from her parents. It is they who provided her the educational foundation that helped her grow into a confident, assured cockatoo.

Star learns to recall to a perch.

From me, and other friends I invited to work with Star, she learned people socialization. She learned that we are entertaining and sometimes amusing creatures who often come equipped with treats. She learned to take goodies from our hands. She learned to target and station on her training perch. She’s an A+ student and eagerly looks forward to her classes.

Star (on the left) and family meet a new friend.

Star developed into a bold youngster as she improved her flight skills daily, swooshing around her aviary landing on orbits, twirling on boings, hanging upside down like a bat, and playing high-speed tag with her parents. She needed, though, one final step before facing the big release.

Learning the In’s and Out’s

Star needed to learn where the flight exit and entry door in the aviary is located. I decided on using the food station for that purpose. The station is located in the front of the aviary and has a handy door that opens to allow placement of food bowls inside. Star had watched her parents come down to the station daily as I serviced it so it wasn’t a big stretch for her to eventually join them when I was there. When she did, I’d offer everyone an almond, their favorite munchie.

Soon Star was the first to fly to the station when she saw me. I incorporated a verbal recall cue when I was at the station. It’s a cue I use with all the flying cockatoos, letting them know it’s time to go inside their aviaries.

The most important preparation for ensuring success for Star’s first flight came from her parents, Bebe and Flash. Kindergarten through high school took place in her aviary with them as her teachers. Now it was time to head off to college. I knew beyond a doubt that Bebe and Flash’s devoted care for Star would transfer to the big sky. They would accompany her and keep her safe.

Star’s First Free Flight

The flight day was cloudy with a spritz of light rain that showed signs of vanishing soon. An internal voice, along with the preparatory practical steps the cockatoo family and I had taken, told me this was the day.

The family sat at the food station as I slowly opened the door. It opens downward and is held in a ramp position by a chain. Bebe and Flash walked cautiously out on it. They waited for Star to join them. After some hesitation she snuggled in between them.

The parents waited patiently for Star to take it all in. She spent a minute or two assessing the new environment. Suddenly, Star took off on her own and a split second later Bebe and Flash joined her.

I couldn’t have asked for a better take off, as it was Star’s choice to fly. She was not startled to fly nor did her parents leave before she was ready. She had decided on her own to spread her wings. Off they went, flying in a tight threesome. Star could be heard vocalizing with her distinct chirp as she flew. It was easy to see that she was a bit wobbly in her new element, with no aviary to restrict her journey through the air. Her unsteady flight grew more certain the longer she flew.

The amount of care and concern the parents took looking after Star and guiding her was, quite honestly, an emotional experience for me. They never, ever let her out of their sight. They didn’t abandon her for any reason nor take her off into the wilderness.

Instead they circled above the aviaries and nearby trees showing her the landmarks from this new perspective of her home. Their attentive behavior was an example of the close bond parrot parents have with their chicks. It brings me much distress that most of those who hand raise parrots seem not to acknowledge the importance of this.

Unexpected Challenges

After about four minutes of flight, Flash and Bebe landed on the top of a nearby tree. “Oh, oh, now what?” I could imagine Star thinking. After two tries she landed somewhat ungainly on a skinny branch, but land she did. A minute or two later they took off again, expanding their flight perimeter.

One comical episode occured when the parents landed on top of their aviary. Star had no idea how to do that. Landing on perches inside the aviary was a breeze. But landing on it? She made several passes, chirping in confusion, trying to figure out a landing strategy. Her parents waited. At last she worked it out and made a successful two-point touchdown.

After an hour of flying and landing on various trees, Bebe and Flash once again landed on the aviary with Star. I was standing near the food door ramp and asked Bebe if they were ready to go in. She and Flash answered by flying down to the ramp.

Star had not been paying attention and was totally bewildered as to how her parents got there. She did short flights near the door vocalizing her frustration to which the parents took off and then returned to the door showing her how it’s done. “Ah, ha! That’s how you do it,” thinks Star…and so she did.

Flight Number Two

With the first successful flight tucked under her wings, I offered a second one a few days later. The difference in Star’s attitude, confidence, and skill was remarkable. Her parents eased off of the close formation, flying and landed in trees while Star kept flying. It’s as if they gave Star the keys to the car and said, “Have at it!” She separated from them many times in the air while swooping, dipping her wings, and throwing in an occasional tail wag for good measure. Was she having fun? You bet!

It’s hard for me to conjure up what Star must have been feeling in her new environment. Is it just another day in the life of a cockatoo or is she exhilarating in this new world that has been introduced to her? Probably it’s a bit of both. I’m looking forward to watching her enjoy what it means to be a cockatoo in the sky—the environment she was meant to be in.

Chris Shank’s love of parrots and knowledge of animal training began several decades ago. Her professional experiences include a degree from the Exotic Animal Training and Management Program at Moorpark College in California, an internship at Busch Gardens’ parrot show, work as a dolphin trainer at Marriott’s Great America in Santa Clara and later in Hassloch, Germany.

Her love for cockatoos came after a relocation to the Philippines. Once back in the United States, she established her aviary Cockatoo Downs, where she has regularly offered training and education to parrot owners for many years now. She is an internationally-recognized expert in free flight.

Commentary on Free Flight: Part Two

It was a coloring book kind of day: blue skies with big, puffy white clouds and a yellow sun spotlighting the greens, reds, and browns of nature in every hue. Reb, my companion Philippine Cockatoo, was high on the top of a tree announcing that he was the master of his domain. Suddenly, he fell from the tree, opened his wings, and swooped down in an exhibition of perfect flight control. He does know how to dazzle his audience!

Which Parrots are Good Free Flight Candidates?

In my last post, I discussed the qualities necessary in the caretaker/trainer that must be realized before free flight outdoors should even be considered. Free flight is fraught with risks and is not appropriate for most caretakers and most parrots. In Part Two, I will be examining the qualities the parrot must have to be considered a candidate for this experience.

Reb is the perfect free flight candidate. Like all cockatoos, he came equipped with what he needed to be a flyer: excellent feather condition, two full wings and tail, eyes with perfect vision, legs and feet that were strong, ears that could hear – you know, the works. He was the standard model of a wild cockatoo and did not require any upgrades to fly successfully in the forests of his native country, the Philippines.

But he was not going to be a wild cockatoo. He was to be my companion free flying cockatoo. His future lay not in the jungles of the Philippines, but in the more restrictive and unnatural environments of a cage, aviary, and house, as well as daily flights outside. His flight education had to be shaped to accommodate such a life.

The Necessity for Fledging

The making of a first-rate companion parrot free flyer starts with the obvious—he must know how to fly well; and, the caretaker must know what that looks like. Many people describe their indoor flighted parrot as an excellent flyer. Upon observation by a more skilled observer, however, it’s apparent the parrot is in the kindergarten stage of flight skills. He flies weakly or with hesitation. Decisions made while in flight can be tentative and landings clumsy.

Watch local native birds. They’ll give you perfect examples of what a companion free flight parrot should exhibit. You’ll see a bird entirely in control. You’ll see a bird who flies quickly with coordination and strength as she takes off and lands. There is no hesitation in her decisions and reactions. You’ll see a bird who knows how to fly in wind and rain. She is as natural at flying as we are at walking. This is what we want to see in our companion free flyer.

Fledging is the optimal and natural time any bird learns to fly. It’s a time-sensitive window to intense learning for the young parrot. Once that portal closes, flight mastery is much harder for the parrot to attain.

If a parrot intended for free flight did not learn to fly skillfully during fledging, dire consequences can occur. It would be like letting a sixteen-year-old teen with little to no driving experience weave his way through busy city streets packed with trucks, impatient Lyft drivers, cars, and pedestrians. Sometimes it doesn’t end well.

The Process of Fledging

A young parrot doesn’t burst from his nest cavity as a perfect flyer. His flight skills develop somewhat slowly. The process starts in the nest where he flaps his featherless wings, building muscle. Later, when he emerges from the nest, he’ll grow in coordination and strength as he practices his developing skills. Providing a large outdoor aviary during fledging gives the young parrot the opportunity to develop his muscles, coordination, and confidence.

Years ago, my parent-raised Bare-eyed Cockatoos gave their fledglings a master class in learning to fly. As the fledglings left the nest box, they never ventured far from their parents while in the aviary. After a couple of days of aviary flight, I released the family to the outdoors where the parents flew to an ash tree next to the aviary.

The kids followed and, under the watchful eyes of the parents, spent the day climbing in the tree and practicing short flights from branch to branch. The parents encouraged exercise by moving about the tree and flying to the aviary. The youngsters would follow, all the while getting stronger and more confident. It was a little less than a week of this routine that the fledglings’ skills improved dramatically.

Does Species Matter?

Recently, I read a query on social media from a potential free flight caretaker: “What species is better suited to free fly, a Galah or an African Grey?” One response explained that the Galah was a better candidate, as the Grey was “wide-bodied.” Now that’s just plain silly! Being “wide-bodied,” whatever that means, prevents the Grey from flying well? It should be noted that watching a flock of wild Greys fly is watching precision in action. Their “wide bodies” don’t seem to handicap them in the least.

My point is that all bird species who evolved to fly well, do. Examples of species that have evolved with less than perfect flight abilities, such as domestic turkeys, chickens, and quail have evolved other survival tactics that get them through the day safely.

The Parrot’s Size

Size does matter when choosing a free flight candidate. Generally, the larger species, such as large macaws and cockatoos will attract less attention from a Cooper’s hawk. A Cooper’s hawk is a smaller-sized raptor, very common in the United States, who makes his living hunting smaller-sized birds. Typically, a Cooper’s wouldn’t try to tackle a large macaw or cockatoo, yet wouldn’t think twice about taking down a conure or Senegal. (Please note, any parrot, no matter the size, represents a meal to any hungry bird of prey.)

I fly smaller cockatoos such as Goffin’s, Bare-eyeds, and Philippine Cockatoos. Because of their smaller size, I am always conscious of the possibility of a Cooper’s hawk attack.

And it has happened. There is more safety in numbers, however, and my birds fly with at least three or more of their flock mates. The more eyes watching out for danger the better.

Even if a free flight parrot has been superbly trained, flying him alone is asking for trouble.

The Parrot’s Age

The age of the free flight candidate is an important factor influencing free flight success. The majority of experienced free flight trainers select young parrots, younger than one year of age, to train to fly outdoors.

Some people have older companion parrots, well past one year of age, they want to fly. Free flying an older parrot can be a lot riskier, making it necessary to evaluate many different factors.

One matter would be the older parrot’s learning history and life experience. For example: Has she been trained with positive reinforcement? Is she an enthusiastic learner? Does she have a solid background in flying? Did she have access to flying in an aviary, or just a house? Does she use flying as her primary mode of transportation? Does she fly without hesitancy? Is she fearful of new experiences or is she accepting of them?

Another factor to examine is the older parrot’s health. Is she strong and robust? Is she without disabilities? Does she have good eyesight? Are her feathers in excellent condition? All of these factors and more need to be thoroughly contemplated and answered honestly in determining if a companion parrot is suitable for free flight.

Certainly older parrots can be taught to free fly. As an example, my Goffin’s Cockatoo, Topper, came to live with me some years ago. He was in his early 20’s. He apparently had had a long history of indoor flight, because he was very adept at flying around my house.

The longer he was in the house, the more I became convinced by his confidence, skill, and strength that he could apply for the job of free flying. I embarked on his training and he earned his wings with distinction. I attribute his accomplishment to his plucky, inquisitive nature, his good health, original flight skills, and his readiness to learn.

Topper’s example will serve as the exception, however. The vast majority of older parrots will not be suitable for free flight. If you wonder about your own parrot, the best step you could take would be to have her evaluated by a skilled mentor.

Essentials for Success

This article is not intended to serve as a primer for evaluating prospects for free flight. I intend merely to open your eyes to the rigorous requirements for success when choosing the parrot candidate.

Further, I would be remiss by not underlining once again the importance of the companion free flight trainer. The caretaker must possess and practice good training skills while working with an in-person mentor for assistance in developing a free flying parrot. Without these two important factors, any parrot, young or old, should not be considered as a free flight candidate.

Watching your parrot explore the open sky using his skills to tackle the wind or fly to the tip top of a tall tree is exhilarating. It’s a dream come true for many parrot owners. I sincerely hope, however, that the considerations addressed in this blog and in my previous commentary (Part One) about free flying be taken earnestly to heart.

As much as I would like it to be, free flight is not an activity for the uninitiated parrot or caretaker. Please regard it as an extreme sport that offers an ecstatic adrenaline rush as well as heartbreak. If you are considering this experience, please proceed with caution.

The Latest News!

Baby Bare-eyed (BBE) is busy growing into a beautiful representation of her species. She’s a Bare-eyed in miniature. Her pin cushion body is now covered with smooth white feathers, she can raise her not-so tiny crest, and her eye patches are turning a lovely gun-metal grey. Her parents are doing a noble job raising up their kid. As of this writing, she is forty-four days old. I expect her to fledge in another 4 to 5 weeks. Excitement awaits us all!

Just for Fun!

This is Ellie. Miss Ellie came to live at Cockatoo Downs almost two weeks ago. I adopted her from a local rescue organization, Exotic Bird Rescue, located in the Willamette Valley of Oregon. It is a fine group of people who have a series of foster homes set up to accept relinquished parrots.

I decided to add another Bare-eyed Cockatoo to the family after my dear Asta Bare-eyed died some months ago from cancer. Asta was a free flyer and lived in the aviary with her friends.

While she was ill, she lived in the house with me. I’ve rarely lived with a “house” bird and Asta showed me how much fun I had been missing. After her passing, the house seemed tomb-like, which prompted me to search for a Bare-eyed Cockatoo in honor of Asta.

What an adventure and learning experience it is getting to know a new cockatoo! Ellie is learning about me and I her. After a week, she has decided I will be an OK roommate and I know I made the right choice in inviting her into the family.

Ellie is a confident little soul, not much afraid of anything. She’s learning the layout of the house and is flying more and more on her own. She flies to ropes and a giant orbit I’ve hung for her. She’s learned to target to a chop stick. She steps up politely, often indicating she’s ready by lifting her foot.

I erected an aviary on the front deck and connected it to the front window so she has access to it at her choosing. The size is 10 feet long by 7 feet high by 5 feet wide.

For materials, I used electrical conduit pipe that can be found at Home Depot. Canopy attachments were used for the four corners. These are found at canopy supply websites. The wire is 1/2 by 1/2-inch galvanized wire, which I found at another home improvement store. This wire is suitable for an aviary that is for day-time use only. The cost was approximately $150.00 and took five days to erect, working on it for a couple of hours a day by myself.

Today, I showed her the open window for the first time and she slowly and cautiously made her way onto the aviary perch. She carefully examined the whole aviary, deemed it to her liking, and even added her own decorating touches by chewing on one of the perches.

Even though Ellie is in good health and feather, I imagine both will improve by her exposure to sunshine and fresh air that the aviary offers. My aviary is a simple home-made affair—nothing fancy, but does supply all the fresh air and sunshine needed to make for a healthy parrot. Consider putting one up for your companion parrots. They will thank you for it.

A great resource for ideas can be found on the Facebook page “Home Aviary Design.” This is a closed group, but anyone can ask to join.

Commentary on Free Flight: Part One

In the minds of most people, watching a free flying bird of any species command the sky summons up feelings of freedom, independence, awe, and flights of fantasy (pun intended). When people are asked what special skill they would like to have, many answer… the ability to fly. Who wouldn’t? Swooping and soaring a sky that holds no boundaries or limits does offer ultimate freedom and control.

The Realities of Free Flight

I wish the reality of flying companion parrots outdoors replicated these romantic notions. Unfortunately, it doesn’t. The open environment of the sky has many speed bumps and obstacles that flying birds must navigate. The list is as long and complicated as a peacock’s tail and includes things such as weather conditions, wind, predators, buildings, cars, hunters, and neighbors. Nevertheless, many parrot owners dream about offering their beloved companion the experience of flying the open sky.

S.Macaw.M.Major.CDRetreat — Photo by Marinka Major

There’s much to consider before offering a companion parrot outdoor flight or, as it is commonly called, free flight. Free flight, along with indoor flight, is a complicated and training-dense activity. Compared to indoor flight, free flying a parrot comes with an extra layer of consequences that can endanger the parrot’s life. With that in mind, let’s examine what I expect a competent free flight candidate to look like.

The Caretaker Trainer

The first element in determining whether a parrot is to be a successful flight candidate is not the parrot. Wait, what? In fact, it’s the parrot’s human partner that determines whether the bird fails or succeeds. A close look reveals the following facts:

All flying bird species are excellent candidates for flight. Bird species meant to fly come equipped with the proper flight paraphernalia and mental acuity to do so.
Captive parrots are also born with everything they need to successfully fly.
Companion parrots are more often than not thwarted from learning to fly properly when humans clip the wings of fledglings or do not provide an environment conducive to learning all their flight skills.
The training skills possessed by the average parrot caretaker typically do not reach the minimum requirements needed to produce a truly successful and safe free flyer.

It is the human component of the free flight equation that holds the key to a successful experience. It is essential that the parrot caretaker must be skilled in using positive reinforcement training. “But wait!” you say. “I’ve heard that if I hand raise a parrot, he will naturally bond to me and won’t want to fly away.” Sadly, this popular belief is fundamentally flawed.

Isn’t Our Bond Enough?

It’s true that by hand raising a parrot, a bond is normally created between caretaker and parrot. Unfortunately, some people believe this is all that is necessary for free flight and consequently, do little if any training. It’s like thinking your puppy will automatically come when called as an adult because she’s “bonded” to you. We all know that usually doesn’t happen.

Without a strong foundation of training, the bond that is created from hand rearing can and does break down as the parrot matures. Even if the bond does grows stronger, it won’t ensure the free flight parrot will be safe or competent in his flying.

The parrot must be taught the basic behaviors all parrots should learn. These include stepping up and down on cue, recalling, entering a carrier, and acceptance of husbandry procedures such as stepping voluntarily onto a scale to be weighed. Not only does this training help develop a confident bird, it goes hand in wing with creating a trusting working relationship between caretaker and parrot.

Necessary Factors

My intent is not to inform readers about how to train a parrot for free flight. I will, however, provide a short list of some of the factors that are involved.

Along with the behaviors mentioned above, the parrot must be taught to fly up from low places and down from high places while developing the physical strength to do so. He must be desensitized to the outdoors by becoming familiar and comfortable with his outside surroundings. He must be given the opportunity to fly in the wind, rain, heat and cold. He must respond to an outdoor recall cue from his caretaker. The list goes on and on.

The human partner to the free flying parrot must have a working knowledge of how to train with positive reinforcement, force-free techniques. Since the use of positive reinforcement and training in general are still not in daily practice by the majority of caregivers, it is likely that the “typical” parrot owner is not well-skilled in training, let alone training for free flight.

Because of this, I highly recommend that the caretaker seek the in-person coaching of an experienced parrot free flight trainer; someone who will guide and support the parrot owner through the process of training.

Online Courses vs. Direct Mentoring

There are trainers online who offer courses in free flight. They offer little more than an outline to follow. Even if they provide help by critiquing videos of their customers training their parrots, it’s just not the same as having an experienced mentor there by your side. Parrots and their people are individuals who have nuances, personality traits, and physical aspects that don’t translate fully via a video or even through discussion. The training mentor simply must be involved in person for the parrot owner to gain the knowledge that is needed to fly a parrot outdoors.

This brings up yet another factor in the making of a capable human flight partner – truly understanding the dangers involved in flying the parrot outdoors. This is another area in which having an experienced trainer by your side is essential.

And to this end, the trainer caretaker must examine whether she has the inner fortitude to accept that her parrot, no matter the proficiency of training, could be lost, injured, or killed at any time during flight. This understanding and acceptance are perhaps the most difficult things to acknowledge and internalize before undertaking the flight training of a parrot.

I am a realist when it comes to free flying parrots and after forty years of flying my cockatoos, I still, to this day, heave a sigh of relief when everyone is put away safely after flying. No matter how much we love our parrots and wish for them a life as close as possible to that of their wild relatives, launching them into the open sky unprepared or partially prepared is a recipe for disaster for both the parrot and her person. There is a steep learning curve for all involved.

So, please, if you are considering free flight for your bird, do a conscientious examination of your personal attributes, talents, deficiencies, personality, and your motives when it comes to wanting your bird to free fly. If you’re honest, the answers will influence whether you proceed with flying or not.

The Latest News!

We recently held a training workshop here at Cockatoo Downs. We invited Susan Friedman and Peggy Hogan to head the weekend and dispense their knowledge about training and behavior to an eager group of trainers. The enthusiasm from the people who attended was palpable and infectious.

Susan Friedman, PhD gave a fascinating presentation about the fact that control is a primary reinforcer, as important to the animal as food. As she stated, “Control is a biological necessity.” Any behavior offered moves the environment – much like a stone tossed into a river. It creates ripples; behavior does as well. All animals behave in order to control their outcomes – access reinforcers or avoid aversives. The reason that animals and birds love training so much is because they are offered the chance to control reinforcers through their behavior.

And, in fact, she stated her belief that a lack of control for a parrot is a risk factor for feather damaging behavior. “Control is the nucleus of behavioral health.” This is one reason that Pam and I lobby so strongly for allowing indoor flight whenever possible for companion parrots.

Susan contrasted training theory held as gospel 20 years ago to the new concepts some trainers are learning to embrace today. Two decades ago, trainers believed that all behavior needed to be under cue control. In other words, the animal should not offer a behavior unless a cue had been given.

A more modern training approach offers the animal more control, in the form of start buttons and request cues. Training is seen as a dialogue between the trainer and the parrot.

This information was kind of a mind blower for me and I’m still digesting the information she shared.

Peggy Hogan presented on start buttons, otherwise known as “yes” or “consent” signals. These allow the animal to communicate when it is ready to proceed with the training task or behavior. Peggy is a zealous campaigner for using start buttons in our training, as this gives the animal control and establishes a dialogue between learner and teacher. Powerful stuff!

Discussions carried on while attendees were coached in working with the cockatoos and equines. Ann Dahlen brought her adorable (is there any other kind?) mini horses and generously allowed people to work with them. Violet, my donkey who easily shows fear reactions, nonetheless sought out any human who was willing to partner up. She’s learned over the last two years of living here that people mean good things. She’s trying hard to be braver each day and it’s paying off.

Flash and Bebe, the Bare-eyed parents, participated in their own way. They have continued to “ask” to go out flying each morning. When I let them out to fly, I seized the opportunity to show off their chick to the training group. The parents accommodated by flying up and away and out of sight. As I brought the chick out of the box she dazzled everyone with her cuteness! In the photo she is 21 days old.

Once the parents were safely back in their aviary, it was easy to see that they were nonplussed by the ten or so people moving about during training sessions. Pam even went into the parents’ aviary at one point and Flash flew to his perch for a quick targeting session while Bebe manned, um, womanned, the nest box watching the action from the entrance hole.

It was a weekend not to be forgotten anytime soon and we were all grateful for the extraordinary learning opportunity we received from Peggy and Susan.

Just For Fun

The free flyers are enjoying time at the creek at Cockatoo Downs. It’s always fascinating to me to watch their interactions with the environment.

In this case, I was sitting on the footbridge while the cockatoos explored the creek. The creek offered an opportunity to practice what comes naturally to a wild cockatoo and that is finding and drinking water. In this video clip the cockatoos learn that drinking water is not always in a bowl. What a concept!

Socializing Young Parrots

Why do young parrots need to be socialized? Aren’t they snuggly, compliant, and cooperative from the get-go? Unfortunately, they are not.

Parrots are only a generation or two away from their wild counterparts. They have not been altered by generations of domestication. They come to us fully packed with all the instincts, mental tools, and patterns of behavior that help them navigate and survive successfully in nature.

Typically, this exquisitely developed system for survival does not serve the parrot well in a home environment. Hence the practice of hand-raising parrot chicks, which tames them before they realize they are “wild”.

Hand-rearing assists in making parrots pliable and adaptable to living with people; but, is it the easiest and best way to accomplish this goal?

The Complexities of Hand-rearing

Possibly not, as the caretaker must know and understand a multitudinous number of important concerns and responsibilities such as: (1) Feeding a correct diet to the chick every few hours, (2) keeping its environment clean and at the correct temperature for comfort and optimal growth, (3) giving the chick appropriate physical attention, (4) allowing him to grow up with conspecifics, (5) providing unforced weaning, and (6) most crucially, allowing him to fledge fully and confidently.

There are scores of other details often not seen or even thought of when raising a parrot chick, with many of them overlooked, unrecognized, or just plain ignored by the caregiver.

As one example, we have evidence that the diet fed to wild chicks is significantly different than that which we use for hand-rearing in captivity. This raises important questions.

Wild vs. Captive Chick Feeding

Most parrot species in the wild feed chunks (an “undigested regurgitate”) of a wide variety of foods to their chicks. This is true no matter the age of the chick. (Cornejo, 2012) Contrast this with the unvaried “gruel” typically used for hand-feeding by breeders. Further, many parrots in the wild feed tree bark and small pieces of wood to their babies. As you will read below, our Bare-eyed parents at Cockatoo Downs choose to do so as well.

The fact that this “undigested regurgitate” remains in the crop for longer periods allows for crop sampling, which has resulted in the research cited herein. Crop contents have been compared to our standard hand-feeding formulas; with the latter coming up short in fat content and some nutrient levels. Further, hand-fed parrots grow more slowly than do parent-fed babies. (Cornejo, 2012)

A life-threatening problem with hand-reared chicks is crop stasis, in which the contents of the crop are not emptied. This may be due to the finely ground texture of hand-feeding formulas. (Brightsmith, et al. 2010) It has been hypothesized that the small pieces of wood and bark found in crop contents may assist in the emptying of the crop, in addition to providing additional minerals and fiber. (Renton, 2006)

But this isn’t a treatise on hand-rearing. I just wanted to emphasize the difficulties and complexities involved, as well as the questions that research has raised. Let’s move on to how it’s possible to form partnerships with parent-raised “wild” youngsters by using positive reinforcement training (R+).

Relationships with Parent-Reared Chicks

We try our darnedest to use R+ training exclusively with all the cockatoos at Cockatoo Downs. Briefly, that means when training or cuing a behavior, the bird is given a favorite food treat when the behavior is performed. Reinforcing a behavior with something the parrot likes makes it more likely that the action will be repeated.

For example, if my cockatoo steps up willingly and politely onto my hand, she gets a treat. If she is on a play stand minding her own business, she is reinforced with treats or activities for doing so. If she flies to me when called, she again gets a yummy food item or a quick head preen. Reinforcers in the form of food treats, head scritches, or anything the parrot likes are offered each and every time. The cockatoo sees me as the go-to source for all things good and chooses to readily perform the behaviors I request.

We set up our training environment in safe surroundings, limiting stress as best we can, and working in short sessions. We are mindful of an assortment of things: the training environment, the bird’s willingness to engage, and knowing when to continue training or to end the session. This list, along with an assortment of other components necessary for successful training sessions, creates a learner who is willing, motivated, and trusting.

The parent Bare-eyed cockatoos, Flash and Bebe (both parent-raised), grew up immersed in R+ training. This has made them trusting of me; and, this trust has generalized to other people, demonstrated by the fact that they are willing participants in working with attendees who come to our training workshops. My hope is that Flash and Bebe’s relaxed and engaged manner with me, Pam, and other people will influence positively their new chick’s behavior.

Because the cockatoo parents show little stress around us and actively seek our attention, their engaged behavior should transfer to the young fledgling and help her more easily adapt to our presence and eventually come to find people as sources of good things.*

What Do We Really Want in a Cockatoo?

Let’s start with a description of what a trained parent-raised cockatoo represents for me. First, I want the cockatoo to be independent and to grow up knowing she is a cockatoo. That’s easy to accomplish with parent- raising. She’ll obviously identify with her parents and not me.

Second, I want her to seek physical and emotional support from her cockatoo friends, not necessarily me. That may sound cold-hearted, as if I don’t really care about her.

On the contrary, I believe it’s healthy for a parrot to grow up identifying as a parrot, and learning appropriate parrot behavior. I celebrate that and want to keep her self-image intact, rather than have it replaced by the more typical image – a snuggly cockatoo, dependent on people to fulfill her life. In short, I celebrate my cockatoos being cockatoos.

Third, I desire my cockatoos to have basic manners and behaviors that make living with people conducive and successful. That means stepping up when asked, coming when called, learning to live in a cage, and learning to go into a travel crate. With these foundational skills accomplished, we can move on to learning other fun stuff like flying thru hoops!

Fourth, I want my cockatoo to engage with other people. I want her to seek out people and investigate what they have to offer her. I want her to be able to anticipate that strange people are cool animals, who most likely will have blue-ribbon goodies to give her.

Now, do I accomplish all of this in my training of parent-reared birds? Usually, yes, although it’s always a work in progress. Working with my parent-reared cockatoos is an ongoing learning experience for all of us, most especially me.

Early Stages for Training

The following outlines the training I anticipate doing with this new little one. I’m sure these steps will be modified as I go forward:

While the chick is still in the nest, I work with the parents on simple behaviors, such as targeting or turning around on the perch, while in the aviary. This keeps the parents engaged and maintains the partnership between us.

I feed the parents treats when I walk by the aviary, if they approach me at the feeding station.

When the chick first leaves the nest box to fledge, I will assess the parents’ behavior and actions, which will indicate to me whether or not to enter the aviary. I will respect their wishes if their body language says, “Do not enter.”

When I can enter the aviary to train, I will start by just handing the parents treats, while the fledgling watches.

The next step will be to work with the parents while moving closer to the fledgling as I do so.

Gradually, through small baby steps, we will work toward including the fledgling in our training.

Training requires awareness and mental flexibility, along with thoughtfulness and commitment. We want to work with the cockatoos, not against them. They call the shots.

What is so wonderful about working with parent-raised birds or even flighted parrots, is the sensitivity necessary for effective teaching. It requires us to stretch and grow our capabilities and offers us untold lessons. In the end, we become better observers, trainers, and appropriate partners to our parrots.

So what’s the easiest way to socialize a parrot chick? Turns out hand-rearing and parent-rearing can be equally challenging. In the end, it’s up to us to determine which is more humane and ethical for the parents and their chicks. I’ve chosen the path less traveled: parent-rearing cockatoos.

*Research has shown how stress can be transferred between members in a gull family.( https://www.pnas.org/content/114/26/6794)

The Latest News!

Flash and Bebe, like all of us in close relationships can, had a tiff a week ago. Bebe wanted to go into the nest box to brood the chick and, for whatever reason, Flash thought otherwise. He wouldn’t allow her near the box and would chase her around the aviary endlessly. What to do? The only thing I could think of was to let them both out to free fly.

I can hear you gasp. Please know that Bebe and Flash have free flown at Cockatoo Downs almost daily for nine years. They know every bit of the territory. They realize the dangers and their flight skills are beyond reproach.

That said, I was more than a little nervous to let them out. My gut, though, was telling me Flash needed to work off energy that was somehow affecting his relationship with Bebe.

I knew they were both highly invested in their chick. I believed that allowing them out to fly would not in any way diminish their instincts to raise the little one. So, holding my breath, I opened the aviary door and out they zoomed.

The cantankerous pair I saw in the aviary instantly transformed into a well-oiled flying machine. They flew together closely and precisely circling the property. Every flight move was made in tandem in perfect coordination. There was no strife, no bickering. It was a beautiful thing to see.

I took advantage of their absence to get my first peak into the nest box. Two eggs had been laid, but only one chick had hatched. Her full crop assured me that she is being well-cared for and comparison photos indicate a solid growth pattern.

After about forty-five minutes of flying and visiting their cockatoo neighbors, Flash and Bebe returned to their aviary. Bebe immediately went into the box and I soon heard the chick peeping loudly as she was being fed. Flash sat calmly on a nearby perch preening. His angst and irritation had vanished and he was at peace with his world.

Another fascinating development: I have observed Flash and Bebe eating tree bark when out flying and then feeding this to their chick, just as wild parrots do (see section above). Since this seems to be an important need of theirs, I have begun bringing branches into their aviary for consumption.

Just For Fun

I went for a short bike ride up my road the other day. It was windy and pleasant. Rebbie, Tyke, and Ritzie were out with me. Reb loves to ride with me on my shoulder as I pedal along. The other two flew low next to me as Reb and I rode up the road.

I turned back for home, riding downhill and into the wind. Reb’s cheek feathers ruffled as he held on tight, leaning into the wind. The other two had perched on a fence post watching as we rode towards home. Reb soon figured that it would be easier to fly than hold on. Off he went, whooshing up into the wind while Tyke and Ritzie left their post to join him. What a sight to behold! I so look forward to having the new little Bare-eyed chick grow up and be able to experience all the excitement free flying has to offer her. And I look forward to sharing her adventures with her.

Cockatoo Downs… Location of Adventures in Living with Parrots

References:

Brightsmith, D, et al. (2010) Journal of Avian Medicine and Surgery 24(1):9–23, 2010 ’ 2010 by the Association of Avian Veterinarians. ” Nutritional Content of the Diets of Free-living Scarlet Macaw Chicks in Southeastern Peru”

Cornejo, Juan (2012). Doctoral dissertation for Texas A & M University: “Insights on Psittacine Nutrition through the Study of Free-living Chicks.” https://www.researchgate.net/publication/293175636_Insights_on_Psittacine_Nutrition_Through_the_Study_of_Free-Living_Chicks

Renton, K. (2006). Biotropica: The Scientific Journal of the ATBC. “Diet of Adult and Nestling Scarlet Macaws in Southwest Belize, Central America” https://doi.org/10.1111/j.1744-7429.2006.00123.x

Disclaimer:I do not recommend nor promote that companion parrots be flown outside without the owner having a solid knowledge of training and behavior and also being assisted in person by an expert parrot trainer with extensive experience in free flight.

New Beginnings

Dear Readers: For the next several months, this blog will be published every week. I am bringing to you an experience you can find no where else. Every other week, my friend Chris Shank will be sharing the extraordinary story of current events at her aviary, Cockatoo Downs, as a guest blogger. On the off weeks, I will be bringing you my own thoughts, as I have been for over a year now. The following is from Chris:

I was down by the creek, clearing some brush with my free flight companion, Tyke, a Bare-eyed Cockatoo. Ritzie, another Bare-eyed, was off on one of his many flight adventures. Tyke and I were among the trees so, when I heard Ritzie give repetitive contact calls from afar, I figured he didn’t know where we were.

I had him in my sights, though, and yelled out our recall cue. Immediately, he made a beeline towards the direction of my call. I watched as he swerved through the trees and made a soft landing on the creek bridge where Tyke and I were working. I marveled at his skills and willingness to respond to my call. You see, Ritzie is a parent-raised free flying cockatoo, unlike Tyke who was hand-raised.

Controversy: Hand-raising vs. Parent-Reared?

Current prevailing “wisdom” recommends that companion parrots destined for free flight must be hand-raised, thereby making it easier to create a stronger bond with their caretakers. This human-parrot bond, so the theory goes, is the foundation for achieving success at flying a parrot outdoors. Countering that theory, parent-raised Ritzie and his brother, Flash, have achieved masterful free flight skills and positive human-cockatoo relationships through positive reinforcement training alone. From that training a trusting partnership has developed between us.

These siblings were raised by their cockatoo parents through fledging. When Ritzie and Flash left the nest, they learned from their parents (who were also competent and confident outdoor flyers) what free flying was all about. While their parents taught them flight skills, I taught them people skills such as recalling to my hand, stepping up when cued, stationing on a perch, and touching a target stick.

We accomplished all of that and more. Now, nine years later, the brothers are consummate flyers and eager participants in training sessions, not only with me, but with people who come here to participate in our many training workshops. This proves to me that parrots need not be hand raised to become willing partners, learners and skilled free flyers.

In Honor of Asta

There’s a free flight project in the making at Cockatoo Downs and it’s all because of Asta, my Bare-eyed Cockatoo. You can see her in the masthead of this blog and in the photo below. She was a super free flyer along with being a best friend to me and her pal, Rebbie, a Philippine Cockatoo. I lost her due to cancer in April 2019.

Pam and I thought the best way to honor her memory and her incredible self was to add more magnificent Bare-eyes (is there any other kind?) to the flock. I’m sure she would approve. So here’s to you, Asta! Wish us luck.

The Project

Flash has paired up with another trained Bare-eyed Cockatoo free flyer, Bebe. Both birds were parent-reared. They are very bonded and are sure to make good parents. I will be journaling the progress of this cockatoo couple from their nest box preparations to brooding, to raising their chicks, to watching them fledge, and onwards through training and flying outside. I’ll be sharing this sure-to-be fascinating journey with you as it progresses.

The Aviary

Bebe and Flash live in a spacious 20 ft. x 40 ft. outdoor aviary. The aviary is planted in grass and has a variety of plants growing seasonally, on which the birds regularly forage. The aviary is connected to the bird barn. A window in the barn wall allows the cockatoos to enter and exit their indoor barn cage (which is 10 ft. by 10 ft.) where their food and water are kept.

The Nestbox

The nest box is made of plywood and was erected on April 18. It’s anchored securely on the barn wall at the back of the aviary. The access hole was purposely kept small to allow the birds to enlarge the hole themselves. In the box, I placed medium-sized chunks of wood for them to chew up, rearrange, or simply toss out the hole. All of this remodeling gets them into breeding mode and facilitates a team effort. Both birds worked on the access hole either together or separately; and, after three days they were able to enter the box.

Brooding

I have purposely chosen not to look in the nest box at any time so as not to disturb the couple. After about a week after entering the box, I saw signs that eggs had been laid. Now, there was always one bird in the box while the other was outside. I also observed another clue. When Bebe emerged from the box and came to the front of the aviary for a treat, I noticed there was a small bare brood patch in the middle of her chest. Flash had one also. If my calculations are correct, eggs should be hatching the week of May 20.

Training

At Cockatoo Downs we practice positive reinforcement and force-free training. I have worked with Bebe and Flash throughout their lives. Training is not on a schedule, but I do try to work with them a couple of times a week either in their aviary or while they are out flying. In their aviary, I have perches set up where they have learned to station, target, and recall to me. They have also readily worked for Pam and people who come to our training events.

Because Bebe and Flash are willing and enthusiastic participants in their training, they will be excellent role models for their youngsters. The newly fledged little ones should find nothing bizarre about this strange looking creature (me) working with their parents. My hope is that they will participate as well.

Going Forward

I am grateful to Pam for allowing me to share the adventures of our new free flight family. If the stars align the way they should, there will be chicks to write about in the next episode. I can hardly wait to hear the soft peep, peep, peeping coming from the nest box. Stay tuned!

Disclaimer: I do not recommend nor promote that companion parrots be flown outside without the owner having a solid knowledge of training and behavior and also being assisted in person by an expert parrot trainer with extensive experience in free flight.

Chris Shank’s love of parrots began with a wild little budgie named Tampiki. Chris’ natural talents at training created over time a trusting relationship with what she calls that “tiny puff of turquoise feathers.” Years later, Chris graduated from the Exotic Animal Training and Management Program at Moorpark College in California. Her internship was done at Busch Gardens where she became part of the parrot show. She next worked as a dolphin trainer at Marriott’s Great America in Santa Clara. From there, she continued her work with dolphins in Hasslock, Germany. Her love for cockatoos came after a relocation to the Philippines. Once back in the United States, she established her aviary Cockatoo Downs, where she has regularly offered training and education to parrot owners for many years now. She is an internationally-recognized expert in free flight.

Part Two: The Benefits to Them

Suggested Ground Rules

Before I begin my exploration of the many benefits of flight for companion parrots, I want to suggest something. My last episode on this topic has generated animated debate, especially on one site to which it was shared. A total of 55 messages (and still counting) illustrate perfectly what I have said before – that radical bias and lack of information play much too large a role in this discussion.

One of the reasons why we have not achieved more progress on this issue is that many people advise others, using information they are merely repeating after having read it elsewhere. Moreover, they have become inexplicably committed to this second-hand information. In addition, many who are knowledgeable in general about parrots feel compelled to also offer advice in areas in which they are not – such as this topic.

I suggest, going forward, that if you do not have years of experience living with flighted parrots in your home, then in this conversation you are a learner. Only by approaching with intellectual humility subjects such as this, will we create the more functional and truly informative discussion that is needed.

Let’s Get Straight About Definitions

For the purposes of this discussion, a fully flighted parrot is an unclipped bird who chooses to fly frequently as his primary means of locomotion inside the home. It does not refer to parrots with unclipped wings who do not choose to fly.

A free flighted parrot is one who is allowed to fly outdoors at liberty. That activity is not within the scope of this discussion. While I have trained companion parrots for free flight, this is not an activity that I advocate except for the rare few. For those of you interested in free flight, trainer Hillary Hankey has written an excellent article about this practice.

The Fledging Process and Brain Development

Fledging is the process through which young parrots learn to fly. The urge to fly is instinctive – every young parrot will at some point launch himself into the air if given the opportunity. However, flight skills must be learned through much practice.

Twenty years ago, it was common to read the statement: “African Greys are nervous, clumsy birds.” At the time I began breeding, I thought this was about the stupidest thing I had ever heard. How could this be? How could they survive in the wild with these qualities?

The truth? An African Grey parrot who was fully fledged is an entirely different adult parrot than one who did not. It is no different for any other species of parrot. Learning to fly impacts all aspects of the young parrot’s development.

“The fledging process itself contributes in many ways to long-term success for psittacine companions because during fledging, early behaviors culminate in a fully active animal totally engaged in and interactive with its environment, including human caretakers.” Further, fledging babies “does not result in cookie-cutter companions but the reverse. When raised in environments tailored to their growth, psittacine companions develop individual personalities, preferences and propensities.” (Linden, P. 2006)

The benefits of learning to fly, however, may extend beyond the coordination, confidence, and autonomy that result from the physical experience.

Development of the Senses

Steve Hartman of The Parrot University writes: “Babies learn best when multiple senses are stimulated simultaneously (i.e.; sight, sound, taste, touch, and smell). The best opportunity for a parrot to learn is when a combination of senses are experienced at the same time. The senses of sight, sound and touch take on a very different nature during flight. When a particular skill is being developed or experienced by different senses at the same time a different neuropathway is reinforced for each sense creating a much stronger neurocircuitry for that skill or knowledge being learned.”

“Each one of the senses, as well as mental and physical skills develop over a period of time, but not at the same time. Some of the development phases are symbiotic, meaning they need information being developed in another area of the brain for their own optimal development. For example, vision develops best when the baby can move around and see things from different angles and distances. Conversely, coordination develops best when the visual cortex can provide information on distance and perspective. Without this symbiotic relationship of vision and coordination, it is difficult to develop three-dimensional vision.” (Hartman, S. 2007)

“The faster he flies, the faster the visual ability needs to be and the faster the brain learns to process the information, and the faster he will be able to fly. Teaching the brain to process information faster and on higher levels, promotes faster decision-making and fewer mistakes in all areas of mental, physical and social competence.” (Hartman, S. 2007)

In Hartman’s piece, no research sources are listed. Such investigation through controlled studies has been absent to date. After all, why research the benefits of flight to companion parrots if we are dedicated to preventing this as a group of caregivers, as we have been previously?

However, evidence does exist for humans, as documented by the authors in The Role of Locomotion in Psychological Development: “The psychological revolution that follows the onset of independent locomotion in the latter half of the infant’s first year provides one of the best illustrations of the intimate connection between action and psychological processes. In this paper, we document some of the dramatic changes in perception-action coupling, spatial cognition, memory, and social and emotional development that follow the acquisition of independent locomotion.” (Anderson, D et al. 2013)

Were we to research further, we would find it true for all animals. The timely acquisition of a creature’s natural means of locomotion fosters more complete brain and personality development.

Benefits of Flight for the Adult Parrot

The fully flighted parrot enjoys physical, social, and psychological benefits far in excess of his wing clipped compatriot.

Physical Health

The parrot who flies to get around the home enjoys far greater health benefits, including stronger musculature, greater resistance to disease due to improved immune function, and better function of cardiac and respiratory systems. There is simply no way that clipped birds can achieve the same level of exercise through walking, climbing, and flapping exercises. (Glendell, G. 2017)

“Birds were made to fly and when they don’t, they develop problems similar to humans who do not exercise; they are more prone to obesity as well as liver, kidney, and heart disease. More over, studies of the bones of the wings and legs of our companion birds are currently being investigated under the lead of Dr. Scott Echols at University of Utah Medical Center in Salt Lake City. The bone density comparisons of birds that are “perch potatoes” are very poor in comparison to wild birds. This metabolic bone disease may contribute to other medical conditions, but the extent is not known yet.” (Orosz, S. 2014)

Improved vision

Hartman suggests that parrots who live with clipped wings may have poorer vision. “Flying birds quickly learn to process visual inputs faster as they develop and reinforce new and improved pathways for routing visual stimulus at high speeds in a three dimensional manner. This educational process cannot take place without flight. Parrots with poor visual skills take longer to assess visual stimulus which may cause the bird to need to react aggressively until the information is processed. For instance, a new person entering the room or someone reaching out to touch may provoke ‘a bite first ask later’ response while the circumstances are being processed.” (Hartman, S. 2007)

Dr. Kenneth Welle concurs: “The use of flight for mental stimulation is very important — birds were designed to fly and the scenery rushing past them stimulates the optic cortex of their brain.” (Orosz, S. 2016)

Physical Safety

While much has been written about the risks that exist in the home for flighted parrots, these are quite easily managed through both training and careful environmental arrangement. In reality, the flighted parrot may enjoy greater physical safety due to his ability to escape unsafe situations.

If a flighted parrot finds himself on the floor with other family pets, he is easily able to fly upward to escape unwanted interaction. If he discovers he is heading toward the stove or other unsafe surface, he can hover and change direction. (A clipped bird who launches himself into uncontrolled flight has no such ability.) If he lands on another parrot’s cage, he can simply fly off before he loses a toe or two.

Social Functionality

Companion parrots who fly are in general more socially adept than those who do not. They quite naturally maintain their autonomy, better able to make choices about when and where to interact with members of the “family flock.”

“The social interactions of clipped birds often land on the side of “overdependent” because, lacking their own resources for exploration, they depend upon human caregivers for entertainment, transportation, and to save them from less-favored persons.” (Linden, P. 2006)

Flighted parrots also are able to make that age-old choice between flight and fight. If able, a parrot who doesn’t like what’s going on will simply fly off. As Linden explains: “Flighted birds flee from unsolicited interest and so find biting largely unnecessary, but clipped birds, lacking escape, often bite to drive away perceived intruders and other annoyances.”

Psychological Benefits

Flighted birds are better able to exercise their own autonomy, making a stream of choices throughout the day and expressing their natural behaviors. For example, my flighted parrots will engage in foraging for hours throughout the day, since I have food placed in several locations around my home.

Parrots who fly are at less risk for developing fear-based behaviors. They are better able to cope with stressful situations and recover more quickly due to the generalized feelings of safety that they experience as a result of being able to use flight for escape.

Quality of life is directly tied to the number of choices that a captive animal is able to make. Flighted parrots are able to make an abundance of choices when out of their cages, since they can perch where they want, eat where they want, and interact with whom they want.

The Obvious Action Step

The benefits of flight to both developing and adult companion parrots are irreplaceable and undeniable. No matter how diligent a caregiver might be, there is no way to fully compensate for a lack of flight ability. I do not believe that it is possible for a clipped parrot to enjoy the same physical, emotional, and psychological health that the flighted parrot enjoys.

As Matt Smith states: “What parrots want is flight and flock – the two things they’re denied as pets in most homes.” In my experience, the one guarantees the other.

A discussion such as this does little to advance quality of life for companion parrots. What we need are action steps that will create the greatest impact.

No one should adopt a baby parrot from a breeder or pet store if that bird has not been fully fledged for a number of weeks. Not all adult parrots can regain flight ability after being deprived of the opportunity during that natural developmental stage for learning. This one single step would have a significant impact on quality of life for parrots going forward. Voting with our dollars creates change.

In my next blog post, I will explore the many benefits to the caregiver of keeping flighted parrots. Until then!

Thank you for reading my blog. I am Pamela Clark, an IAABC Certified Parrot Behavior Consultant and veterinary technician. My passion is helping people with parrots. To access free resources or subscribe to my newsletter (which is a different publication from this blog), please visit me at http://www.pamelaclarkonline.com. Until next time!

Resources:

Anderson, D. I., Campos, J. J., Witherington, D. C., Dahl, A., Rivera, M., He, M., Uchiyama, I., … Barbu-Roth, M. (2013). The role of locomotion in psychological development. Frontiers in psychology, 4, 440. doi:10.3389/fpsyg.2013.00440 Accessed 03/19/2019.

Bergman, Charles. 2013. No Fly Zone: Denied their natural habits, millions of pet parrots lead bleak, lonely lives. The Humane Society of the United States. https://www.humanesociety.org/news/no-fly-zone. Accessed 03/26/2019.

Glendell, G. 2017. Birds Need to Fly. The IAABC Journal. http://spring2017.iaabcjournal.org/birds-need-fly. Accessed 03/24/2019.

Hartman, Steve. 2007. Thinking on the Wing.The Parrot University. https://theparrotuniversity.com/flight. Accessed 03/26/2019.

Linden, Phoebe Greene with Leuscher, Andrew. 2006. The Manual of Parrot Behavior. Ames, Iowa: Blackwell Publishing. Pages 93-111.

Moser, Dean. 2004. Parrot and Flight: Flight and the Companion Parrot.AFA Watchbird: Journal of the American Federation of Aviculture. https://journals.tdl.org/watchbird/index.php/watchbird/article/view/1841/1815. Accessed 03/27/2019.

Orosz, Susan PhD, DVM, Dipl ABVP (Avian). 2014. Is Your Bird Ready to Fly? Avian Expert Articles. https://lafeber.com/pet-birds/bird-ready-fly. Accessed 03/22/2019.

Orosz, Susan PhD, DVM, Dipl ABVP (Avian). 2016. Free Flight: Lessons from ExoticsCon. Avian Expert Articles. https://lafeber.com/pet-birds/free-flight-lessons-exoticscon. Accessed 03/22/2019.

Proctor, Noble and Lynch, Patrick. 1993. Manual of Ornithology: Avian Structure & Function. Ann Arbor, MI:Yale University. Pg. 214.