Part 33

GRABER, R., AND GRABER, J.

1951. Notes on the birds of southwestern Kansas. Trans. Kansas Acad. Sci., 54:145-174.

HARDY, J. W.

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.

LONG, W. S.

1940. Check-list of Kansas birds. Trans. Kansas Acad. Sci., 43:433-456.

LEHRMAN, D. S.

1958. Induction of broodiness by participation in courtship and nestbuilding in the ring dove (Streptopelia risoria). Jour. Comp. Physiol. Psychol., 51:32-36.

LEHRMAN, D. S., BRODY, P. N., and WORTIS, R. P.

1961. The presence of the mate and of nesting material as stimuli for the development of incubation behavior and for gonadotropin in the ring dove (Streptopelia risoria). Endocrinol., 68:507-516.

LINSDALE, J. M.

1926. The magpie nesting in Kansas. Condor, 28:179-180.

1928. Birds of a limited area in eastern Kansas. Univ. Kansas Sci. Bull., 18:517-626.

1937. The natural history of magpies. Pac. Coast Avif., 25:1-234.

MARSHALL, A. J., and DISNEY, H. J. de S.

1957. Experimental induction of the breeding season in a xerophilous bird. Nature, 177:143-144.

MAYR, E.

1946. History of the North American bird fauna. Wilson Bull., 38:3-41.

MCCABE, T. T., and MCCABE, E. B.

1933. Notes on the anatomy and breeding habits of crossbills. Condor, 35:136-147.