Assertion: tern's plumage | /r/HasProperty | grey
Facets:
value: mostly
type: DEGREE
value: with black markings on the head
type: OTHER
Source sentences:
text: Measuring 29 cm (12 in) in length, the adult tern has predominantly grey plumage with a black cap typical of many terns.
text: They are related to waxwings and like that group have soft silky plumage, usually gray or pale yellow.
text: They are mainly grey and white plumaged, with a red/orangish beak and feet, white forehead, a black nape and crown (streaked white), and white cheeks.
text: The plumage is mostly grey or white, typically with black markings on the head.