BROOD SIZE AND SURVIVAL TO BREEDING IN MIDWESTERN PEREGRINE FALCONS

Harrison B. Tordoff; John S. Castrale; Mark S. Martell; Patrick T. Redig

doi:10.1648/0273-8570-71.4.691

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Harrison B. Tordoff,¹ John S. Castrale,² Mark S. Martell,³ Patrick T. Redig³

¹Bell Museum of Natural History and Department of Ecology, Evolution and Behavior, University of Minnesota, 1987 Upper Buford Circle, St. Paul, Minnesota 55108
²Indiana Division of Fish and Wildlife, R.R. 2, Box 477, Mitchell, Indiana 47446
³The Raptor Center, University of Minnesota, 1920 Fitch Avenue, St. Paul, Minnesota 55108

Abstract

Because brood size might affect nutrition or behavioral development of young Peregrine Falcons (Falco peregrinus), we explored the relationship of the size of the brood from which individuals fledged to their probability of surviving to become breeders in the midwestern United States. In our sample, the probability of an individual peregrine surviving to become a breeder was not related to size of the brood from which it fledged, based on 139 broods fledging 379 young of which at least 38 survived to become breeders.

Citation Download Citation

Harrison B. Tordoff, John S. Castrale, Mark S. Martell, and Patrick T. Redig "BROOD SIZE AND SURVIVAL TO BREEDING IN MIDWESTERN PEREGRINE FALCONS," Journal of Field Ornithology 71(4), 691-693, (1 October 2000). https://doi.org/10.1648/0273-8570-71.4.691

Received: 25 May 1999; Accepted: 1 November 1999; Published: 1 October 2000