Assertion: ostrich's feather | /r/CapableOf | help the bird
Facets:
value: from the elements
type: OTHER
value: in its flight maneuvers
type: OTHER
Source sentences:
text: The skin muscles help a bird in its flight by adjusting the feathers, which are attached to the skin muscle and help the bird in its flight maneuvers as well as aiding in mating rituals.
text: Feathers also help to protect the birds from the elements.