Researchers have found that a tropical species of hummingbird called a black jacobin makes vocal sounds with an unusually high-frequency pitch that falls outside birds' normal hearing range. It's not ...

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Though famous for their mid-air hovering during hunting, tiny hummingbirds have another trait that is literally telltale: males of some hummingbird species generate loud sounds with their tail ...

Owls hoot and geese honk, but the black Jacobin hummingbird sounds like a cricket. The Brazilian bird's song is so high-pitched that neuroscientist Claudio Mello didn't even realize at first that a ...

Claudio Mello was conducting research in Brazil’s Atlantic Forest about 20 years ago when he heard a curious sound. It was high-pitched and reedy, like a pin scratching metal. A cricket? A tree frog?

Anna's hummingbird flying in the experimental setup, drinking sugar water from a fake flower. Credit: Lentink Lab / Stanford University. Anna's hummingbird flying in the experimental setup, drinking ...

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

Birds have evolved some very strange features and behaviors in order to woo mates. Birds-of-paradise feathers are a natural vantablack. Bowerbirds build elaborate and colorful nests. And it seems that ...

Iridescent purple bow ties are the telltale signs of black-chinned hummingbirds. This species is a common backyard visitor in ...