Assertion: hawk's feather | /r/CapableOf | change color
Facets:
value: gradually
type: MANNER
value: over several molts
type: TEMPORAL
Source sentences:
text: The youngsters also are a much lighter color than their parents, with their feathers gradually changing color over several molts.
text: In fact, the youngsters are a much lighter color than their parents, but their feathers change color gradually over several molts.