Sharon Heald / Red tailed black cockatoos perched {Calyptorhynchus banksii} Western Australia

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.

D. Parer & E. Parer-Cook / Red-tailed Black-Cockatoo (Calyptorhynchus banksii) female flying, Lakefield National Park, Queensland, Australia

D. Parer & E. Parer-Cook / Red-tailed Black-Cockatoo (Calyptorhynchus banksii) male feeding on seeds, Lakefield National Park, Queensland, Australia

D. Parer & E. Parer-Cook / Red-tailed Black-Cockatoo (Calyptorhynchus banksii) male landing in tree, Lakefield National Park, Queensland, Australia

D. Parer & E. Parer-Cook / Red-tailed Black-Cockatoo (Calyptorhynchus banksii) flock flying, Lakefield National Park, Queensland, Australia

Martin Willis / Red-tailed Black-Cockatoo (Calyptorhynchus banksii) juvenile, Magnetic Island, Queensland, Australia

Martin Willis / Red-tailed Black-Cockatoo (Calyptorhynchus banksii) male flying, Magnetic Island, Queensland, Australia