Ever wonder if a parrot can make itself go deaf from its own screaming? Do parrots hear better than humans? Do parrots have particularly sensitive hearing? Read on to learn about parrot hearing!
I'm surprised to learn that some people think parrots have sensitive hearing. I have observed this mindset a few times over the years so I would like to address it in greater detail.
For example in my "Shot My Parrot Dead" trick video on youtube, there have been numerous viewers objecting to me yelling at Kili when pretending to be mad. Vicky Abramowitz commented, "Cute trick aside. Why do you two knuckleheads have to shout? Parrots have sensitive hearing. Try to keep that in mind."
At least they don't think the parrot is actually dead like a thousand other comments but they are still misinformed about avian hearing. For those still questioning if the parrot really dies or not in the video, then be sure to check this analysis video.
I had researched bird hearing years ago when I began taking my parrots flying with me in airplanes. While it is recommended that people, and even dogs, wear hearing protection while flying in small piston airplanes, there is no option for parrots. I was interested in whether or not there was a danger to my parrots. I learned that it is not. However, with little information on the subject and continued discussions, I decided to share with you what I have learned.
So how does bird hearing compare to human? Not as good. First of all, birds lack a certain organ that helps funnel in sound waves into the ear cavity. What could that be? Oh yeah, external ears! Birds do not have those floppy things sticking out of their heads. I guess so much for my idea of making bird-earrings or glasses (birds have excellent vision so I guess they won't be needing them anyway). Birds lack external ears to be more streamlined for flight so that is already one hearing advantage that they lack.
Not only do birds lack external ears, their internal ears are actually covered by feathers. You can't normally see their ears and could almost think they don't even have any. However, when the feathers are parted, we can in fact see that birds do have ears. The feathers covering the ear openings help keep wind out while flying and reduce wind noise similar to a fluffy mic muff cover. However, this adds a further reduction in sound that reaches the bird's ear.
As we travel deeper inside a bird's ear, the next difference we can find is a more primitive ear structure. Like their reptilian ancestors, birds have just one inner ear bone called the columella (analogous to the stapes bone in mammals). One of the defining features of mammals that distinguishes them from reptiles is the evolution of a 3 boned ear structure featuring the malleus, incus, and stapes ear bones. This 3 boned ear structure allows mammals to have more sensitive hearing, particularly in the higher pitch ranges.
For this reason, parrot hearing is limited to the 200 Hz-8.5 kHz range while humans can hear in the range of 31 Hz-19 kHz. That means your parrot won't hear the deep bass notes and high pitch cymbal crashes in your music. However, they can hear just fine across the human vocal range.
Ornithology 3rd Edition Frank B. Gill, Page 193
What this chart shows is that birds, with the exception of owls, need sound volume to be louder in order for them to be able to hear it in the first place than humans do.
This means that a parrot cannot hear a watch ticking, a pin drop, or leaves rustling because they simply are not loud enough for them to be able to hear. Since their hearing drops off precariously in the high pitch range, this also means that high pitch sounds have to be very loud for them to hear them at all. But don't worry, before you start speaking loudly to your parrot like it's your grandfather, parrots can hear normal human speech at 70db just fine! A quiet whisper just meets their minimum hearing threshold.
Now what about noise, how much does it bother them? Not nearly as much as it bothers us! Besides the somewhat reduced hearing ability in birds, they are better equipped to handle noise. This should be no surprise to parrot owners. Why is it that when a parrot screams in your ear, you can go temporarily deaf in that ear while a parrot can scream all day without causing hearing damage to itself or the other parrots near it? It turns out that it has to do with the inner ear hair cells.
Hair cells detect the transmission of sound vibrations and turn them into an electrical signal that gets processed by the brain. Extreme noise or prolonged exposure to loud noise in humans damages these hairs and causes hearing loss. However, in birds these hair cells regenerate and return full hearing ability! "Most NIHL [Noise Induced Hearing Loss] is caused by the damage and eventual death of these hair cells. Unlike bird and amphibian hair cells, human hair cells donít grow back. They are gone for good." (National Institute on Deafness).
And this all makes perfect sense. Humans as all mammals, evolved from small nocturnal ancestors who relied heavily on hearing for navigation and predator avoidance. This explains why birds have superior vision but mammals have the better hearing.
But what about parrots being able to hear and learn to mimic sounds so well? Just because parrots learn to mimic speech and sounds exceptionally well does not mean they have the best hearing apparatus. This is mainly coming from their brain. Parrots live in a different time scale than we do. They can see and hear quicker than we can! They can distinguish more sounds or sights per second than we can. Similar to how blind people can learn to listen and distinguish sounds better, parrots can take the lesser sound they hear and do more with it!
If loud noise bothered our parrots, they would try harder to evade that noise and also wouldn't be so noisy themselves. If my yelling act bothered Kili too much while making the Shot My Parrot Dead video, she would have simply flown off to a quieter part of the room. People don't give the animal enough credit for having the sense to be able to take care of itself. Saltyspirit made a good observation in the video, commenting "It's amazing how he doesn't mind him yelling."
But before you get the impression that I'm suggesting that you yell at your parrot, think twice! Not because I'm worried for your bird's hearing. No, it will be just fine. Because of your hearing! Giving your parrot the impression that you're into yelling too could encourage the parrot to join in. You on the other hand will experience hearing loss and unlike your parrot, your hearing won't restore itself.
In conclusion, parrots have less sensitive hearing, less hearing frequency range, better hearing perception, and innate protection against hearing damage. So use the Parrot Wizard approach to quieting your parrot down or invest in a good set of ear plugs.
I have been writing this book for the last half year but more importantly it is the culmination of five very intense years of parrot education, training, consulting, and performing. I've taken everything that I have learned, applied it, and then wrote down for you the essentials that you can apply to your bird. This book isn't there to teach you how to teach a million tricks or become a performer. It's about how to achieve a well-behaved parrot and ultimately a mutual relationship!
It's not that I think I know better than others, but I just was never very pleased with the other books I've read about parrot keeping. Many of them are obsolete and don't recommend best practices. But even some of the books I agree with, I just found terribly boring. They are written by experts for experts and really leave the common parrot owner in the dust. Parrot owners don't need the nitty gritty technical stuff, they need something accessible that they can apply and that will work! I understand this because I'm a pet parrot owner and it wasn't long ago that I was desperately seeking help on the most basic things.
Instead of teaching you how to do absurdly complicated tricks with your parrot, my book is there to teach you all the essential stuff from merely approaching your parrot's cage without it freaking out to being able to grab it. A lot of emphasis is placed on taming, health, safety, and other things that are essential elements of keeping a pet parrot. Also the first chapter is entirely about how to choose a parrot in the first place for folks who do not yet have one and attempts to answer the classic question, "what kind of parrot should I get?"
In my book, I tell it how it is. I don't try to sugar coat things or make a parrot owner out of everybody. The purpose is to help those who want the help and to get them to achieve a good relationship with their parrot. The book takes a very balanced approach keeping both the parrot's well-being but also the parrot owner's sanity in mind. I realize that people are busy, have other commitments, may not have the means to buy fancy stuff. That is why my book is down to earth and really about finding a way that anyone can make it work rather than a professional approach to training performing parrots.
Unlike any other parrot book I've ever come across, mine presumes that parrots are flying creatures and takes an approach to keeping them as such. Despite the recommendation of keeping them flighted, the book presents countless ways to get more out of your parrot than if it were clipped! Flight safety, flight recall training, flight trick training, and managing flighted parrots are key themes throughout the book. Even if your parrot is clipped you will find this book extremely helpful and I think it will convince you that you can still have a relationship with your parrot by allowing it to fly. Better yet, you will have a better behaved, healthier, safer, and more fun parrot than it could ever be while clipped!
Problem solving receives an entire chapter in the book. Solving problems such as biting, screaming, plucking, and even flighted related issues are extensively covered. However, the main purpose of the book is to present an approach to follow from day 1 to ensure that those problems don't arise in the first place. This information is all based on problems I have solved in my own parrots or have helped others solve with theirs.
You'll find it interesting that I barely wrote any of this book at home. It has bits written all over the world on planes, trains, and automobiles. I've been writing it on the go during my travels. Guyana, Suriname, French Guiana, Guadeloupe, Haiti, Ethiopia, Sudan, Eritrea, Djibouti, and Somalia are some of the places I was in while writing the books. During those trips I got to observe parrots in their natural habitats so it was especially encouraging to me to help owners find the best compromise between a parrot's nature and desirable household pet qualities.