Sulphur-crested cockatoo (Cacatua galerita) in Sydney Botanic Gardens,Sydney, New South Wales, Australia, Pacific

Greater sulphur-crested cockatoo (Cacatua galerita), Queensland, Australia, Pacific

Sulphur-crested cockatoo (Cacatua galerita) flying in Sydney Royal Botanic Gardens, Sydney, New South Wales, Australia, Pacific

Sulphur-crested Cockatoo (Cacatua galerita), Dandenong Ranges National Park, Dandenong Ranges, Victoria, Australia, Pacific

Adult little corellas (Cacatua sanguinea) in flight in Wyndham, Kimberley, Western Australia, Australia, Pacific

Adult little corellas (Cacatua sanguinea) in boab tree in Wyndham, Kimberley, Western Australia, Australia, Pacific

An adult yellow-crested cockatoo, Cacatua sulphurea, in its home in a palm tree on Komodo Island, Indonesia.

An adult yellow-crested cockatoo, Cacatua sulphurea, in its home in a palm tree on Komodo Island, Indonesia.

Little Corellas, Cacatua pastinator, Yellow Waters, Kakadu National Park, Northern Territory, Australia, Pacific

Galahs, Cacatua roseicapilla, Batchelor, Northern Territory, Australia, Pacific

Major Mitchell Cockatoo perched on branch, Queensland, Australia

Sulphur-crested cockatoo (Cacatua galerita), Bali Bird Park, Indonesia, Southeast Asia, Asia

Sulphur-crested Cockatoo (Cacatua galerita), crest in raised position, Queensland, Australia

White cockatoo or umbrella cockatoo (Cacatua alba), adult bird, Indonesia

Major Mitchell's Cockatoo also known as Leadbeater's Cockatoo or Pink Cockatoo (Cacatua leadbeateri), rare bird, New South Wales, Australia

Sulphur-crested cockatoo (Cacatua galerita)