Bats of the Rocky Mountain West begins with a general discussion of bat biology and evolution as well as regional physiography and zoogeography. This full-color, 289-page book is the result of two decades of extensive research and includes the behavior and ecology of 31 species of bats found in Montana, Idaho, Wyoming, Utah, Colorado, New Mexico and Arizona. This beautifully illustrated field guide includes distribution maps, color photographs and contains a handy glossary. It is a must for anyone with an interest in bats. By Rick Adams, Associate Professor of the University of Northern Colorado and president of the Colorado Bat Society.