Kadlec, J. A. 1971. Effects of introducing foxes and raccoons on herring gull colonies. J. Wildl. Manage. 35(4):625-636.
Kadlec, J. A., and W. H. Drury. 1968. Structure of the New England herring gull population. Ecology 49(4):644-676.
Kenyon, K. W., and R. E. Phillips. 1965. Birds from the Pribilof Islands and vicinity. Auk 82(4):624-635.
Klein, D. R. 1959. Saint Matthew Island reindeer-range study. U.S. Fish Wildl. Serv., Spec. Sci. Rep.—Wildl. 43. 48 pp.
Kluyver, H. N. 1951. The population ecology of the great tit, Parus major L. Ardea 39:1-135.
Kluyver, H. N. 1966. Regulation of a bird population. Ostrich 38 (Suppl. 6):389-396.
Kluyver, H. N., and L. Tinbergen. 1953. Territory and the regulation of density in titmice. Arch. Neér. Zool. 10:265-289.
Lack, D. 1948. Natural selection and family size in the starling. Evolution 2:95-110.
Lack, D. 1954. The natural regulation of animal numbers. Clarendon Press, Oxford. 343 pp.
Lack, D. 1964. A long-term study of the great tit (Parus major). J. Anim. Ecol. 33(Suppl.):159-173.