Body weights of newly hatched Anatidae

As early as 1928 (E.C. Meyers, Auk, 45: 334-388, 1928) investigators realized the importance of bird weights and appealed to ornithologists to record and publish records of these. Practically all of the weights of waterfowl that have been published, however, have been of adults or grown young (see F.H. Kortright, The ducks, geese and swans of North America, Amer. Wildl. Inst., 1943, pp. 381-388; F.C. Bellrose and A.S. Hawkins, Auk, 64: 422-430, 1947; A.L. Neldon and A.C> Martin, J. Wildl. Mgmt., 17: 36-42, 1953; F.A. Hartman, Condor, 57: 221-238, 1955; and D.W. Johnston, Wilson Bull., 75: 437, 1963). The purpose of this paper is to make available a record of weights of a number of species of newly hatched Anatidae.