Assertion: quail's feather | /r/HasProperty | black
Facets:
Source sentences:
text: Quails are covered with brown, black, white, grey and blue feathers.
text: Their plumage, or feathers, is light colored and normally grey, tan, white, and black.
text: The curving crest or plume of these birds is made of six feathers that droops forward (black in males and brown in females; the flanks are brown with white streaks).