Assertion: bufflehead's patch | /r/HasProperty | white
Facets:
Source sentences:
text: They have a white patch on the side of their round heads and have white patches on their wings that are visible during flight.
text: They have a white patch on the side of their round heads and have white patches on their wings that are visible during flight.
text: Shortly after they are born, buffleheads are black or dark gray and have white patches on their cheeks.