Assertion: harrier's wingspan | /r/CapableOf | spend periods of time
Facets:
value: in flight over openings
type: LOCATION
value: extensively
type: DEGREE
Source sentences:
text: Most accipitrids will supplement their diet with non-putrid carrion but, of course, none specialized with this as well as the 14-16 species of vultures, which have evolved very large bodies (which leave them equipped to fill their crop with carrion), weaker, less specialized feet relative to other accipitrids, large wingspans to spend extensively periods of time in flight over openings scanning for carcasses and complex social behavior in order to establish a mixed species hierarchy at carrion.