Vydavatel US Fish and Wildlife Service, Department of the Interior
Datum vydání před téměř 10 roky
US
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This report summarizes the Waterfowl Breeding Population and Habitat Survey for southern Saskatchewan during 1997. The primary purpose of the survey is to provide information on spring population size and trajectory for certain North American duck species. Survey methods, habitat and weather conditions, breeding population indices, and tables of population estimates are provided.