San Rafael: Buteo Books, 1985. Quarto, illustrations, fine copy in dustwrapper.

WAS $80. Contributions from over 280 ornithologists covering the field of modern ornithology and related subjects. Includes articles on all the bird families, almost all of which are illustrated by a representative species. There are also short entries defining special terms, application of names etc. The total gives a text of over 800,000 words, supported by more than 500 photographs, drawings and diagrams.