Sundarbans East Wildlife Sanctuary but their chief prey is the spotted deer ("Axis axis") and the wild boar ("Sus scrofa"). There are three species of wild cat, the leopard cat ("Prionailurus bengalensis"), the fishing cat ("Prionailurus viverrinus") and the jungle cat ("Felis chaus"). Also present are three species of otter, one of which, the smooth-coated otter ("Lutrogale perspicillata"), has been domesticated by local fishermen. The South Asian river dolphin ("Platanista gangetica") inhabits some of the larger water channels. Birds are plentiful with over 270 having been recorded in the area including 38 species of raptor, 95 species of waterfowl and 9 of kingfisher. On
Endangered Species Act of 1973 legislation, crafting a document that completely changed the direction of environmental conservation in the United States. Dr. Bertrand is credited with writing the most challenged section of the Act, the "takings" clause – Section 2. The stated purpose of the Endangered Species Act is to protect species and also "the ecosystems upon which they depend." California historian Kevin Starr was more emphatic when he said: "The Endangered Species Act of 1982 is the Magna Carta of the environmental movement." The ESA is administered by two federal agencies, the United States Fish and Wildlife Service (FWS) and the National Marine Fisheries