Yellow Tailed Black Cockatoo Description

Adult birds are between 55 and 65 cm in length and weigh over 800 grams, black overall with paler feather-margins and patches of pale yellow in the tail. The male bird (illustrated at right) has a black bill, a dull yellow patch behind the eye, and a reddish eye-ring. Females and immatures have a grey eye-ring, a light-coloured bill, and a brighter, more clearly-defined yellow cheek-patch.