Ernie Janes / Red-tailed black cockatoo (Calyptorhynchus banksii) Freycinet National Park, Tasmania, Melbourne, Victoria, Australia.

Dave Watts / Red-tailed black cockatoo (Calyptorhynchus magnificus) adult female. Victoria, Australia

Roger Powell / Red-tailed black cockatoo (Calyptorhynchus banksii) pair resting in the upper branches of a eucalyptus tree. Leaning Tree Lagoon, Northern Territory, Australia.

Roger Powell / Two Red-tailed black cockatoos (Calyptorhynchus banksii) pair resting in a tree. Leaning Tree Lagoon, Northern Territory, Australia.

Roger Powell / Red-tailed black cockatoos (Calyptorhynchus banksii) male landing at a muddy area to feed on minerals in earth, Leaning Tree Lagoon, Northern Territory, Australia.

Michael D. Kern / Red-tailed black cockatoo (Calyptorhynchus banksii) tail feather against black background.

Konrad Wothe / Red-tailed cockatoo (Calyptorhynchus banksii) male preening, Queensland, Australia, captive

Dave Watts / Red-tailed Black-Cockatoo {Calyptorhynchus banksii} South Australia

Roland Seitre / Red-tailed cockatoo (Calyptorhynchus banksii macrorhynchus) flock taking flight, Australia.

Roland Seitre / Red-tailed cockatoo (Calyptorhynchus banksii) flock perched in tree, roosting, Australia.

Roland Seitre / Red-tailed cockatoo (Calyptorhynchus banksii) flock perched in tree, roosting, Australia.

Roland Seitre / Red-tailed cockatoo (Calyptorhynchus banksii) feather detail, Australia. Captive.