RANT AND RAVE Rave for the sound of birds chirping in the early morning. Rant that habitat destruction, pesticide use reducing food sources (insects), collision with glass/structures and climate ...

This is an archived article and the information in the article may be outdated.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

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 ...

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 ...

That innocent-sounding bird singing out its morning song may not be so innocent after all. According to scientists at Ruhr-Universitaet in Bochum, Germany, manipulated audio waves from the sounds of ...