Assertion: bufflehead | /r/HasProperty | cavity nesters
Facets:
Source sentences:
text: Buffleheads are cavity nesters, typically using old burrows of woodpeckers or other burrows when available (including nest boxes).
text: The Bufflehead is a cavity nesting duck and almost exclusively nests in holes excavated by Northern Flickers.
text: Buffleheads are cavity-nesting ducks and prefer to nest near lakes and deep ponds with associated temperate woodlands.