Biological anomalies--birds: A catalog of biological anomalies

BIOLOGICAL ANOMALIES - BIRDS is one of 22 volumes in the Catalog of Anomalies published by The Sourcebook Project. The catalog provides an objective, unsensationalized compilation of anomalous phenomena, difficult to explain observations, and curiosities of nature in the fields of astronomy, biology, archeology, geophysics, and geology. This volume is devoted to presenting anomalies and curiosities in the world of the feathered creatures we call birds. Some of the topics covered include Asymmetrical Birds * Feather and Bill Curiosities * Wing Claws and Spurs * Inherited Callosities * Unrelated Birds that Look Alike * Enigmas of Avian Instincts * Bird Intelligence * Aesthetic Senses of Birds * Birds that Roost Upside-Down * The Nature of Brood Parasitism * Avian Battles, Courts, and Funerals * Unsolved Mysteries of Migration * Poisonous Birds * The Avian Respiratory System * The Two-Voice Phenomenon * and Echolocation in Birds. BIOLOGICAL ANOMALIES - BIRDS contains 150 illustrations and intriguing accounts collected from the archives of 140 sources including Natural History, The Condor, Lives of Birds, New Scientist, Nature, The Ibis, The Auk, Science, Science News, American Naturalist, Dictionary of Birds, and American Scientist to name a few. Over 1,150 citations are referenced and indexed three ways, by First Author, Source, and Subject. The indexes are cross-referenced to each entry in the book to aid the reader in locating original source materials and conducting independent research.