Aerial Observer's Guide to North American Waterfowl
During aerial surveys, waterfowl are difficult to identify to species and to accurately estimate flock size. Several tools are now available to assist aerial observers with both species identification and count estimation. A recent book is described here; see other pages on this web site for video-based training and for testing tools. |
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Suggested citation: Bowman, T. D. 2014. Aerial Observer's Guide to North American Waterfowl. USFWS publication FW6003. Denver, CO, USA. Here's how to order the Aerial Observer's Guide to North American Waterfowl (Item # FW 6003):
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