Lack, D. 1968. Ecological adaptations for breeding in birds. Methuen, London.

Lasiewski, R. C. 1963. Oxygen consumption of torpid, resting, active and flying hummingbirds. Physiol. Zool. 36:122-140.

Lasiewski, R. C., and W. R. Dawson. 1967. A reexamination of the relation between standard metabolic rate and body weight in birds. Condor 69:13-23.

Lasiewski, R. C., and G. K. Snyder. 1969. Responses to high temperature in nestling double-crested cormorants and pelagic cormorants. Auk 86:529-540.

LeCroy, M. 1972. Young common and roseate terns learning to fish. Wilson Bull. 84:201-202.

LeCroy, M., and C. T. Collins. 1972. Growth and survival of roseate and common tern chicks. Auk 89:595-611.

Lemmetyinen, R. 1972. Growth and mortality in the chicks of arctic terns in the Kongsfjord area, Spitzbergen in 1970. Ornis Fenn. 49:45-53.

Lind, H. 1965. Parental feeding in the oystercatcher Haematopus o. ostralegus (L.). Dan. Ornithol. Foren. Tidsskr. 59:1-31.

Lustick, S. 1970. Energy requirements of molt in cowbirds. Auk 87:742-746.

Manuwal, D. A. 1974a. The natural history of Cassin's auklet (Ptychoramphus aleuticus). Condor 76:421-431.