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Edited by Bruce Campbell and Elizabeth Lack, this landmark reference work was published in 1985 by T & A D Poyser in association with the British Ornithologists' Union. Spanning nearly 700 pages, it brings together contributions from more than 280 leading ornithologists and researchers. The book provides authoritative articles on bird families, anatomy, behavior, ecology, and taxonomy, with many entries running to several thousand words. Over 500 illustrations, photographs, and diagrams complement the text, making the volume both visually informative and scientifically rigorous. A definitive resource for ornithologists, birdwatchers, and naturalists, this work remains a cornerstone of modern ornithological literature.
