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SUMMARY OF FOUR YEARS OF OBSERVATIONS OF BIRD POPULATIONS ALONG BRANDYWINE CREEK, CHADDS FORD, PENNSYLVANIA
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SUMMARY OF FOUR YEARS OF OBSERVATIONS OF BIRD POPULATIONS ALONG BRANDYWINE CREEK, CHADDS FORD, PENNSYLVANIA
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Journal Article
SUMMARY OF FOUR YEARS OF OBSERVATIONS OF BIRD POPULATIONS ALONG BRANDYWINE CREEK, CHADDS FORD, PENNSYLVANIA
1969
Overview
During the last four years (January 1965-February 1969) an attempt has been made to record bird population changes by species along a 5½ mile transect bordering Brandywine Creek near Chadds Ford, Pennsylvania. The populations were sampled at least once each month and in many cases, several times a month. Certain field note-taking techniques were developed to record particular types of information.
Publisher
Pennsylvania Academy of Science
Subject
