The only mammals capable of true flight, bats are among the world's most fascinating creatures. This accessible guide to the forty-seven species of bats found in the United States and Canada captures and explains the amazing diversity of these marvels of evolution. A wide variety of bat species live in the United States and Canada, ranging from the California leaf-nosed bat to the Florida bonneted bat, from the eastern small-footed bat to the northern long-eared bat. The authors provide an overview of bat classification, biology, feeding behavior, habitats, migration, and reproduction. They discuss the ever-increasing danger bats face from destruction of habitat, wind turbines, chemical toxicants, and devastating diseases like white-nose syndrome, which is killing millions of cave bats in North America. Illustrated species accounts include range maps and useful identification tips. Written by three of the world's leading bat experts and featuring J. Scott Altenbach's stunning photographs, this fact-filled and easy-to-use book is the most comprehensive and up-to-date account of bats in the U.S. and Canada.