Do any of you add birds to your list that you see in aviaries or zoos? Is it simply a personal preference thing?
I suppose you can count whatever you want on your own personal list.
The American Birding Association has listing rules which state that the bird must be "wild and unrestrained."
It is a personal matter, though I don't know any birder who keeps a list that includes captive birds.
No reason why you couldn't keep a list of birds seen in captivity, maybe you could have a seperate list for captives.
Regards,
Andy