Assertion: duck's feather | /r/HasProperty | iridescent
Facets:
value: in males
type: OTHER
value: in sunlight
type: LOCATION
Source sentences:
text: The black feathers of the male are iridescent in sunlight but the female coloration is more muted and drab in order to provide camouflage when nest sitting.
text: The bird is predominantly black and white, with the back feathers being iridescent and glossy in males, while the females are more drab.