The Umbrella Cockatoo, also confusingly called the White Cockatoo, is native to the north Maluku islands in Indonesia.
Its raised crest is said to open up like an umbrella, hence its "umbrella" common name.
Its plumage is all white except for under-wing and under-tail which are pale yellow (see below). The beak is dark/black.
Umbrella Cockatoo with crest raised
The yellow under-wings and under-tail
He went that way
The flasher