Assertion: roller | /r/CapableOf | get their name
Facets:
value: from their impressive courtship flight
type: OTHER
value: from the aerial acrobatics
type: OTHER
Source sentences:
text: Rollers get their name from their impressive courtship flight, a fast, shallow dive from considerable elevation with a rolling or fast rocking motion, accompanied by loud raucous calls.
text: The group gets its name from the aerial acrobatics some of these birds perform during courtship or territorial flights.
text: Rollers get their name from their impressive courtship flight.