Assertion: snow goose's phase | /r/HasAspect | white head
Facets:
value: mostly
type: DEGREE
Source sentences:
text: The Blue phase has a white head and neck, blue-gray upperparts, gray-brown breast and sides, white belly, pink bill, legs and feet and black lower mandible.
text: Extremely rare blue-phase has mostly white head and belly, brown back; black primaries and secondaries, wing coverts bluish-gray.