The Breeding Birds of Kansas

by Richard F. Johnston

1961. Purple martins nesting in city buildings. Wilson Bull., 73:281.

Hopkins, A. D.

1938. Bioclimatics, … U. S. Dept. Agric., Misc. Publ. 280:iv + 188 pp.

Johnston, R. F.

1954. Variation in breeding season and clutch-size in song sparrows of the Pacific coast. Condor, 56:268-273.

1956. Population structure in salt marsh song sparrows, I. Condor, 58:24-44.

1960. Directory to the bird-life of Kansas. Univ. Kansas Publ. Mus. Nat. Hist., Misc. Publ. 23:1-69.

Lack, D.

1947. The significance of clutch-size, I, II. Ibis, 89:302-352.