What Is a Bird?: An Exploration of Anatomy, Physiology, Behavior, and Ecology

A large-format, beautifully illustrated look at the natural history of birds There are some 10,000 bird species in existence today, occupying every continent and virtually every habitat on Earth. The variety of bird species is truly astounding, from the tiny bee hummingbird to the large flightless ostrich, making birds one of the most diverse and s...