Hummingbirds - YouTube HD

Hummingbirds are birds that comprise the family Trochilidae. They are among the smallest of birds, most species measuring in the cm (3--5 in) range. Indeed, the smallest extant bird species is a hummingbird, the 5-cm Bee Hummingbird. They can hover in mid-air by rapidly flapping their wings 12--80 times per second (depending on the species). They are also the only group of birds able to fly backwards. music by Kendra Springer 05 - Angela