Thomson, J. Arthur The biology of birds by J. Arthur Thomson. - New York The Macmillan Company 1923. - xi, 436 p. illus., IX pl. (incl. col. front.) Printed in Great Britain. Bibliography: p. 419-429. LCCN: 24006765 Subjects--Topical Terms: BirdsBiology LC Class. No.: QL698 / .T5 1923a