Assertion: woodpecker | /r/CapableOf | do passerine birds
Facets:
Source sentences:
text: Woodpeckers do not have such a wide range of songs and calls as do passerine birds, and the sounds they make tend to be simpler in structure.
text: Since woodpeckers do not have a song as do passerine birds, drumming may serve as a territorial signal similar to bird song and it may also serve to attract a mate.