was successful and Assateague Island National Seashore was formed. Parks and refuge The entirety of Assateague Island is owned and operated by three different agencies: the NPS, Maryland State Parks, and United States Fish and Wildlife Service. All of the land on the island north of the Maryland-Virginia state line is the Assateague Island National Seashore, with the exception of the smaller Assateague State Park. The national seashore was established in 1965 to preserve the barrier island and surrounding waters, and provide recreational opportunities. All of the island south of the state border in Virginia is the Chincoteague National Wildlife Refuge, with the exception of a one-mile stretch of land including the recreational beach and interpretive facilities managed by the NPS. The Refuge was established in 1943 to provide habitat for migratory birds, primarily snow geese. The U.S. Geological Survey has initiated studies aimed at mitigating the potential sea-level rise on this barrier island complex. Human use of the island The National Park Service allows off-road vehicles with permits in certain areas. Car camping sites are available in both the National Seashore and Assateague State Park by reservation. Backcountry sites are also available from the National Seashore. There is no camping available from the Chincoteague National Wildlife Refuge. Pets are prohibited in all areas except certain parts of the National Seashore and parts of the state park. Kayak touring is a popular way to see the wildlife, especially on the calmer bay side. Summer months are known for heavy mosquito populations, particularly on the bay side. Assateague State Park comprises almost and lies in Maryland within the National Seashore. The state park is the most developed area on the island with 350 campsites. Most of the water around the island is within the boundaries of the national seashore. The island has a land area of and has no resident population in either Maryland or Virginia, though a few retained property rights until 2006. These were mainly hunting camps. Fauna Large populations of birds inhabit the island, including American oystercatcher, great blue heron, and snowy egret. There are over 320 species that are known to inhabit the island during some portion of the year. These include gulls, terns, and other shorebirds along with raptors, waterbirds, and waterfowl. The piping plover is a threatened species that nests on Assateague. The feral horse population of Assateague Island is alternately known as the Assateague