Sequoyah National Wildlife Refuge in eastern Oklahoma, along the western edge of Robert S. Kerr Reservoir, was established in 1970 to provide habitat for waterfowl and other migratory birds while supporting resident wildlife. Named for the Cherokee scholar Sequoyah, who created the Cherokee writing system, the 20,800-acre refuge includes grasslands, bottomlands, river bluffs, hardwood forest, and extensive water, with about half the area flooded. This varied habitat supports migratory birds such as mallards and snow geese, as well as bobcat, muskrat, rabbit, deer, and monarch butterflies. Cooperative farming on 3,000 acres also helps attract wildlife, and the refuge supports birding, fishing, and regulated hunting.