Monitoring Bird Populations by Point Counts by John R. Sauer, Sam Droege, United States Department of Agriculture

Monitoring Bird Populations by Point Counts

John R. Sauer, Sam Droege, United States Department of Agriculture

190 pages missing pub info (editions)

nonfiction nature challenging informative medium-paced
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Point counts of buds are the most widely used quantitative method and involve an observer recording buds from a single point for a standardized time period. In response to the need for standardization of methods to monitor bird populations by cens...

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