Population Ecology of the Mallard. 8. Winter Distribution Patterns and Survival Rates of Winter-Banded Mallards

摘要

In the present report the authors address questions about winter distribution patterns and survival rates of North American mallards, Anas platynchos. Inferences are based on analyses of banding and recovery data from both winter and preseason banding periods. The primary wintering range of the mallard was divided into 45 minor reference areas and 15 major reference areas which were used to summarize winter banding data. Descriptive tables and figures on the recovery distribution of winter-banded mallards are presented in the study.