Assertion: peregrine falcon's back | /r/HasProperty | black to slate grey
Facets:
value: usually
type: DEGREE
value: with indistinct darker barring
type: OTHER
Source sentences:
text: The back and the long pointed wings of the adult are usually bluish black to slate grey with indistinct darker barring (see "Subspecies" below); the wingtips are black.
text: The back and the long pointed wings of the adult are usually bluish black to slate grey with indistinct darker barring; the wingtips are black.