With more than 5,000 works cited, Handbook of Avian Hybrids of the World is the greatest compendium of information ever published on hybridization in birds. Wor

Telenothians: An Inquiry into the Limits of Hybridization is a collection of information bearing on a single primary question: How different can two organisms b

A full-color photographic guide to these captivating and challenging birds This is the essential identification guide to the terns, noddies, and skimmers of Nor

"A highly illustrated, portable field guide to two families of flycatchers, Myiarchus and Tyrannus, some of the most difficult birds to ID in the field"--

Much of Charles Darwin's groundbreaking work as an evolutionary biologist stemmed from his study of birds. It is universally acknowledged that Darwin's observat