The Umbrella Cockatoo, also confusingly called the White Cockatoo, comes from 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). Its beak is dark/black.
Umbrella Cockatoo with crest raised
The yellow under-wings and under-tail
He went that way