To have everyone come out and work on it together makes it even more beautiful and meaningful.” About the Bird: The Blackpoll ...

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 ...

A female Galápagos yellow warbler falls asleep on her nest during a playback of cowbird calls, which usually provoke aggressive responses in mainland warblers. Researchers are realizing that ...

This female Kentucky warbler was a rare find at the Tremont bird-monitoring station. Its capture this summer marked the first time the species had been collected at the site.

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 ...

At the Tremont station, the Kentucky warbler is one of 42 species that have been recorded in the nets ov­er the years. Louisiana waterthrushes account for about one-third of total captures on the ...