I think rescuing is important. These birds live so long, many outlive their owners.
My cockatiel is very sassy. She bites and hisses at me when she doesn't want to be touched, which happens to be the majority of the time.
Are umbrella cockatoos generally like this? Or are they attention seeking?
Varick vom Haus Jeffery
Dark Sable, intact male
DDR/West German Show Lines