You already know that hummingbirds are amazing animals — they can hover in place for minutes at a time, fly backwards at will, and flap their buzzing wings up to 70 times per second. But how much do ...

One of the first signs of spring are the sounds of birds chirping in search of food, nesting grounds, and a potential mate. But sometimes those bird calls aren’t coming from the source you’d expect.

Rather than singing to their mates, Costa's hummingbird males court females with musical, high-speed dives. Their "song" is produced as the wind whistles through their tail feathers. Now, researchers ...

Berkeley -- The beeps, chirps and whistles made by some hummingbirds and thought to be vocal are actually created by the birds' tail feathers, according to a study by two students at the University of ...