Ducks, Geese & Swans of North America

Ducks, Geese & Swans of North America-  543 Hardcover book by Frank C. Bellrose.  Illustrations by T. M. Shortt and Frank C. Bellrose, Jr.  A completely new ad expanded version of the classic work by F. H. Kortright.  Book includes Waterfowl Surveys - Migration Corridors - Population dynamics - Classification of ducks, swans, and geese - Molts & Plumages of Waterfowl - Conservation of Waterfowl - Mortality & Disease - Species Accounts - Identification - The Role of Huning Regulations.

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