In birds, males are usually much more bright and colorful ... and it’s not always easy to tell a female and a male wolf apart. There are some signs to look for though. Though there is some ...

Spangled contingas were one of 977 species analyzed by Dunn et al. in a worldwide survey of bird coloration. This material relates to a paper that appeared in the 27 March 2015, issue of Science ...

Learn what a Calliope hummingbird looks like, where to find these tiny birds in the U.S., and how to attract them.

Most are distinguished by striking colors and bright plumage of yellow ... appearance and put on a phenomenal show for both female birds and any humans lucky enough to be in the vicinity.

A female may choose a male from several because he is attractive ... Looks are certainly important for the peacock, with his absurdly bright, burdensome train that he shows off to attract a ...

Often taken for granted, the brightly plumaged male summer tanager is one of the more spectacular breeding birds of North America. The uniform bloodred feathers seen against a bright green ...