Referential alarm calls increase vigilance in brood parasite hosts

Yellow warblers are hosts to brood parasitic brown-headed cowbirds, which rely on other species to raise their offspring. Warblers use referential "seet" calls to warn female warblers specifically of the brood parasitic brown-headed ...

Seabirds successfully nesting in Oʻahu neighborhoods

ʻUaʻu kani, or wedge-tailed shearwater, is a seabird species common in Hawaiʻi. Though historically found nesting along coastlines, human development in these areas has likely reduced the availability of nesting habitats, ...

The science of ants' underground cities

Picture an anthill. What do you see? A small mound of sand and crumbly dirt poking up through the lawn? A tiny hole disappearing into the ground? A few ants scrambling around busily. Not very impressive, right?

How landscapes of fear affect the songbirds in our backyards

A team of researchers headquartered at the University of Massachusetts Amherst has recently discovered that fear plays an important, unrecognized role in the underdevelopment, and increased vulnerability, of backyard songbirds.

Some birds observed stealing hair from living mammals

Dozens of online videos document an unusual behavior among tufted titmice and their closest bird kin. A bird will land on an unsuspecting mammal and, cautiously and stealthily, pluck out some of its hair.

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