Author: Pasquier, Roger F., Foreword by Roger Tory Peterson,
Title: Watching Birds: an introduction to Ornithology, a natural companion to the Peterson Field Guides.
Description: Boston, Houghton Mifflin Co., (1977). 2nd printing. VG PB. How does an owl catch a mouse it cannot see? Why do male birds sing more than females? Author is an ornithologist at the. American Museum of Natural History. Over 100 illustrations by a superb wildlife artist. Also anatomical diagrams, epicions of courtship displays and migration mapa.

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