The female black-headed grosbeak seems to use song to give her ... you would think it was one bird singing, not two. Magpie larks sing a duet to defend their territory in the Australian bush.

The striking rose-breasted grosbeak is a common bird of wooded habitats across much of eastern and midwestern North America. Singing from ... Adult female: mainly brown above with streaks, paler ...

The handsome black-headed grosbeak is the western counterpart to ... where they come into contact in the western Great Plains. Singing males are generally easy to see in a variety of habitats ...