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 ...

This is an archived article and the information in the article may be outdated.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 ...

A cheerful chirping is part of everyday life with pet birds–but what if the familiar sounds suddenly become a persistent, piercing whistle or call? There may be more behind the unusual volume than ...

Add Yahoo as a preferred source to see more of our stories on Google. The wonderful sound of birdsong is one of nature's most purest pleasures. However, some birds have taken it to the extreme. Meet ...

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 ...