I lost my first budgie to a cat. He was clipped. House was being sprayed with RAID (insect killer), so the animals (2 birds, 1 hamster) went to live with my grandmother who had a dog and a cat at her house. I wasn't there. Cat knocked over the cage and grabbed the first bird she could.... I can only hope he died instantly. I have wondered if he was flighted, would he have been able to escape the cat? Would he have lived a longer life if he wasn't clipped?
I've also lost another budgie when I was stupid enough to have him out on my shoulder as I was walking around. He got startled and flew up into a tree. Couldn't reach him, couldn't get him down. He was clipped, although had enough flights to still fly some.
I'm still pro-flight, even after my experiences. There are pros and cons to each side of the argument.
Should you clip your parrot
I agree with Mayden's post about people being "clip happy" for *ANY* reason. I feel the same way. Bird bites? Clip it. Bird is afraid? Clip it. Bird isn't taught to come down from above? Clip it. Bird attacks others? Clip it. Bird follows you around? Clip it. Bird gets into everything? Clip it.
Whatever happened to *training* the bird? Why can't the bird be trained while flighted? Sure, a bird may be easier to train when clipped, but on the flip side, if you don't train the bird correctly, the issue will just reappear once the bird is flighted again. So what do you do? What most owners do.... clip the bird! (a cycle that either repeats itself, or often leads to the bird remaining clipped for the rest of the birds life as the person wont do the training required to teach the bird how to behave)
If you didn't want an animal that couldn't fly, why'd you buy a bird? (rhetorical question)
Even if a bird doesn't get to fly outside, flight is still healthy for them. My own birds I have noticed less biting and less screaming when they get enough exercise. The more exercise they get, the less likely they are to perform undesired behaviors. If one of them decides to fly and attack people, then I'll train the bird *NOT* to do that rather than clipping them!
With the cockatiels, my hen that flies the most has good chest muscle and she feels "thick". She actually feels heavier than another hen that weighs more than she does! My overweight hen feels spongy like and isn't as keen to flying for the joy of it. Obesity is a concern for some species... and with obesity comes the potential for fatty liver disease. Flight can help overweight birds lose fat and burn calories. Likewise, flight can help some underweight birds to gain weight as they'll require more calories to maintain weight... and the more they exercise, the more muscle they'll build up.
I find clipped birds on the ground more often than flighted birds are - unless you have ground foragers who enjoy being on the ground. Birds who are on the ground are more likely to get stepped on, attacked by a predator (cat, dog, ferret, rat...), have something fallen on them, chew on cords on the ground or any other number of things.
I find Pamela Clark's comments about fledling african greys to be interesting. African greys are often known as neurotic, nervous and clumsy birds. She found this information was true for african greys that were clipped at a young age, but false in greys that were allowed flight and not clipped at all.
Ethical, Moral & Spiritual Considerations of Companion Parrot Care By Pamela Clark, CVT
Greg Glendell mentions that more phobic fear in birds is seen in birds that are clipped or mutilated. In the second link, he goes into some details about dangers of clipping.
Behavioural Problems in Companion parrots by Greg Glendell
SHOULD MY PARROT’S WINGS BE CLIPPED? by Greg Glendell
Steve Martin has a good article that may be worth a read.
To fly or not to fly? - that is the question!
Additional links and information can be found here (among other places). This page has links to other pages in regards to flight (although some are dead).
Flying
If you are going to clip, you should full well know the pros and cons to both sides. Far too many people clip because they only know the cons of flight and the pros of clipping. This means that there are also pros to flight just as there are also cons to clipping. (which should go unsaid)
Regardless of the choice, please do the research! And just because you allow flight *DOES NOT* mean you have to allow free-flight out doors. People have rented warehouses, gyms or other large buildings for flying parrots safely indoors. There's also the option of building an aviary to allow flight.
[ame=http://www.youtube.com/watch?v=NzyZGdMp9kM]Parrot Training - Indoor Free Flying - DUCK!! Pet Parrot Free flight Skills and Myths - YouTube[/ame]