The U.S. Fish and Wildlife Service (Service) is the principal Federalagency with the responsibility for conserving, protecting, and enhancingfish and wildlife and their habitats. The Service manages a diverse networkof more than 500 national wildlife refuges. The National Wildlife RefugeSystem which encompasses more than 92 million acres of public land andwater, and provides habitat for more than 5,000 species of birds, mammals, fish, and insects