Assertion: mallard's head | /r/HasProperty | iridescent green
Facets:
Source sentences:
text: The mallard is an extremely common dabbling duck that is easily identified by its iridescent green head and white neck ring.
text: Males have bright colors: the head is iridescent green, the breast is reddish, the sides are gray, and the back is dark.
text: The mallard is an extremely common dabbling duck that is easily identified by its iridescent green head and white neck ring.