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Showing 1 to 1 of 1 for “"Geese--Counting"”.
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An Analysis of Certain Remote Sensing Techniques for Counting Large Numbers of Geese
… a technique of estimating large numbers of geese accurately and to provide a permanent reproducible record of the estimate. The technique to be developed was to utilize equipment easily available to field personnel. Procedure. The red, blue, green, and infra-red electromagnetic wave lengths …