The death of birds in Richmond has given rise to many theories, but nothing much has been found as to why these incidents ...

Polytypic (the 2 North American subspecies are poorly differentiated; the coastal birds have ... to lower belly yellow. Adult winter: similar to adult male, but head less black, supercilium ...

The striking rose-breasted grosbeak is a common bird of wooded habitats across much ... Adult male: unique in North America. Its black head, throat, back, wings, and tail contrast with gleaming ...