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The “Rufa” Red Knot is now protected under the Endangered Species Act

10,000 Birds

Fish and Wildlife Service has listed the “Rufa” population of Red Knot ( Calidris canutus rufa ) as a threatened species under the Endangered Species Act (ESA). In both cases, knots, which feed on the crabs’ eggs, can miss their peak refueling opportunity. Birds in Delaware Bay. Photo: Gregory Breese-USFWS.