Assertion: duck's plumage | /r/CapableOf | give advantage
Facets:
value: in plains lakes
type: LOCATION
Source sentences:
text: It has been proposed that the American black duck and the mallard were formerly separated by habitat preference, with the American black duck's dark plumage giving it a selective advantage in shaded forest pools in eastern North America, and the mallard's lighter plumage giving it an advantage in the brighter, more open prairie and plains lakes.