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

A common species of western mountains, where the male’s diagnostic ... tail averages less rufous at base. Female/immature rufous/Allen’s hummingbirds are slightly smaller and slimmer in ...

The male ruby-throated hummingbird does indeed have a striking red throat, though the female of the species does not. You would have to look quickly to see either, however, as these speedy little ...

The rufous hummingbird, another species of the West ... As a general rule of thumb, if the male’s back is more green than orange, it’s an Allen’s. The female is green above, white below ...