Word: scharf
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Dates: during 1970-1979
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...past times, the area teemed with thousands of breeding gulls. Wheeling overhead, they scavenged for dead fish and refuse-and picked the beaches clean. In 1962, William C. Scharf, a biologist at Northwestern Michigan College, counted 2,500 gulls' nests on nearby Bellows Island alone. This spring he found only 300. Why? Scharf partly blames dune-buggy drivers who careen through nesting grounds, plus harmful human discards like pop-top beer-can rings, which can injure hungry gulls. But the chief reason is heavy use of chlorinated hydrocarbons: DDT and its chemical cousins, dieldrin and chlordane...
...Bertram Scharf Professor of Psychology Northeastern University...