1910. Distribution and migration of North American shore birds. U. S. Dept. Agr., Bur. Biol. Survey Bull. 35, 100 pp., illus.

1913a. Distribution and migration of North American herons and their allies. U. S. Dept. Agr., Bur. Biol. Survey Bull. 45, 70 pp., illus.

1913b. The relation of bird migration to the weather. The Auk, vol. 30, pp. 205-221, illus.

1914. Distribution and migration of North American rails and their allies. U. S. Dept. Agr. Bull. 128, 50 pp. illus,

1915a. Bird migration. U. S. Dept. Agr. Bull. 185, 47 pp., illus.

1915b. Bird migration in the Mackenzie Valley. The Auk, vol. 32, pp. 442-459, illus.

1915c. Distribution and migration of North American gulls and their allies. U. S. Dept. Agr. Bull. 292, 70 pp., illus.

1915d. The yellow-billed loon: A problem in migration. The Condor, vol. 17, pp. 213-214.

Coues, E.

1878. Birds of the Colorado Valley, a repository of scientific and popular information concerning North American ornithology. U. S. Dept. Interior Misc. Pub. II, 807 pp., illus.