This is an archived article and the information in the article may be outdated.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

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 ...

A cheerful chirping is part of everyday life with pet birds–but what if the familiar sounds suddenly become a persistent, ...

At first I suspected they didn’t borrow from any particular bird species, Susan. I thought the electronic “chirp” may have been created out of thin air by engineers using computers. All that’s needed ...