1963. 560 pp. Hardcover with dust jacket, both in Near Fine condition. Fourth edition reprint, revised and enlarged, B/w and color plates. Previous owner's name on front free endpaper. Color frontispiece. In the original edition, 250 birds were described, and in each succeeding issue the number was increased. In the present edition, 7 more species have been added, and 12 referred to in the text. There is also one new colored plate and five text figures by Roland Green.