Assertion: sea eagle | /r/HasAspect | dark brown
Facets:
value: to black plumage
type: OTHER
value: mostly
type: DEGREE
value: with contrasting white
type: OTHER
Source sentences:
text: The mature Steller's sea eagle has mostly dark brown to black plumage, with strongly contrasting white on the lesser and median upper-wing coverts, underwing coverts, thighs, under-tail coverts and tail.