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

Males of some hummingbird species may have evolved to be smaller than their female counterparts because it allows them to put on more impressive courtship displays. Sexual dimorphism – where the sexes ...

The researchers came across this discovery through the use of picocam, a 3D-modeling technology that Mansfield developed, ...

Phenotypic characters with a complex physical basis may have a correspondingly complex evolutionary history. Males in the “bee” hummingbird clade court females with sound from tail-feathers, which ...

The wings of the world's tiniest birds are a near-invisible blur as they whizz around tourists visiting a private Cuban garden that has become a haven for the declining species. The bee hummingbird, ...