Ornithologists say the chirping of birds at daybreak is part of their mating ritual. They tell me that increasing daylight, especially in the spring and early summer, triggers the mating instinct in ...

The sound of a bird chirping is nature’s alarm clock. It somehow creates a sense of peace as you open your eyes to get your day started. But one thing you might never recall is hearing birds at night.

Why do birds chirp so loudly in the early morning? I like to have my bedroom windows open, but the noisy birds seen determined to cause a harsh clatter. Ornithologists say the chirping of birds at ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. CHICAGO — If you’ve ever been up before the ...

Birds can chirp, birds can fly and now scientists have new evidence that birds can communicate with each other using sound made with their feathers. A species called the fork-tailed flycatcher, or ...