Assertion: cockatoo's plumage | /r/HasProperty | greyish black
Facets:
Source sentences:
text: Its plumage is mostly greyish black, and it has prominent white cheek patches and a white tail band.
text: The bird has a short crest on the top of its head, and the plumage is mostly greyish black.
text: It has a short crest on the top of its head, and the plumage is mostly greyish black.