Assertion: heron's crest | /r/HasProperty | raised
Facets:
value: during mating displays
type: TEMPORAL
value: back of head
type: LOCATION
Source sentences:
text: Green Herons have a shaggy crest that can be raised at will by the bird.
text: The crest can be raised on back of head.
text: The crest is raised during mating displays revealing pink skin beneath.