Assertion: laughing gull | /r/CapableOf | ruffle their feathers
Facets:
Source sentences:
text: These involve exaggerated calls and movements: Laughing Gulls threaten each other or simply claim space by extending the neck and head, lowering them toward the ground and calling, tossing the head backward repeatedly while calling, or ruffling their feathers, nodding the head, and flapping the wings.