Davis, L. I.

1936-1940. The season: lower Rio Grande Valley region. Bird-Lore (now Audubon Mag.), 38-42.

F. [arner], D. [onald] S.

1947. Studies on daily rhythm of caged migrant birds (review of Palmgren article). Bird-Banding, 18:83-84.

Gates, W. H.

1933. Hailstone damage to birds. Science, 78:263-264.

Howell, A. H.

1932. Florida bird life. Florida Department Game and Fresh Water Fish, Tallahassee, 1-579 + 14 pp., 58 pls., 72 text figs.

Lansberg, H.

1948. Bird migration and pressure patterns. Science, 108:708-709.