1934b. The operation of homing instinct. Bird-Banding, vol. 5, No. 4, pp. 149-155.
1935a. Ancestral highways of the sky. American Forests, vol. 41, No. 4, pp. 157, 159, and 196, 4 figs.
1935b. The migration of North American birds. U. S. Dept. Agr. Cir. 363, 72 pp., 29 figs., bibliog.
1935c. The waterfowl flyways of North America. U. S. Dept. Agr, Cir. 342, 12 pp., illus.
1936. Trans-Atlantic flight of gull-billed tern. The Auk, vol. 53, No. 3,
1937a. The enigma of bird migration. Sci. Digest, vol. 1. No. 5, pp. 63-65.
1937b. Our greatest travelers. In "The Book of Birds," Nat. Geog. Soc, vol. 2, pp. 301-350, 1937.
1939a. The migration of American birds. Doubleday, Doran & Co., New York, pp. i-xii and 1-189, col. pl. i-xii, maps 1-22.
1939b. The individual vs. the species in migration studies. The Auk, vol. 56, No. 3, pp. 250-254.
1940. When the dove travels. Outdoor Georgia, vol. 1. No. 4, pp. 9 and 22 (1 map).