WASHINGTON (AP) — Perched on a flowering shrub on a windy Andean mountainside, the tiny Ecuadorian Hillstar hummingbird chirps songs of seduction that only another bird of its kind can hear. As the ...

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?

There are chirping sounds outside my office window today, and I bet this visiting bird is doing a countdown to the first day of spring. Now and then, I go to the window to see if I can spot her – and ...

I was recently creeping through a clearing of downed trees in a wooded Brooklyn park with my iPhone in hand. Birds were singing everywhere, but through the din, I was recording a peculiar song: It was ...

Please listen to the attached audio clip. For the last few nights a bird has been chirping in our backyard, but since it’s dark outside we can never seem to find it. We even tried using the bird sound ...