A western grassfinch flew over to some bushes with a morsel in its bill, but I could not discover its nest or young, search as I would.    From Wordnik.com.  [Birds of the Rockies] Reference

Even the trills of the grassfinch and the song-sparrow have points of similarity; does that prove that they borrow from each other, or that espousals sometimes occur between the two species?.    From Wordnik.com.  [Birds of the Rockies] Reference