PhysOrg Posted July 26, 2017 Share Posted July 26, 2017 In 1966, a U.S. Fish and Wildlife Service biologist named Chan Robbins launched an international program designed to measure changes in bird populations using volunteers recruited to count birds on pre-set routes along country roads. The result, the North American Breeding Bird Survey or BBS, is still going strong more than five decades later. This month The Condor: Ornithological Applications is publishing a special set of research papers to honor the program's fiftieth anniversary. Read the full article on PhysOrg Link to comment Share on other sites More sharing options...
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