Assertion: puffin's neck | /r/HasProperty | black
Facets:
value: during breeding
type: TEMPORAL
Source sentences:
text: Horned puffins have a black neck and back.
text: They have black necks, backs and wings with white underparts and whitish feathers on the sides of the face.
text: During breeding, the bird’s plumage crown, neck, and upperparts are black, while the belly and sides are white.