Red River National Wildlife Refuge is home to a diverse array of species, including over 200 bird species, various mammals, amphibians, reptiles, and numerous fish species. The refuge encompasses a variety of habitats, such as bottomland hardwood forests, wetlands, and grasslands, which support this rich biodiversity. Exact numbers can vary, but the refuge is recognized for its ecological importance and wildlife diversity.
Coldwater River National Wildlife Refuge was created in 2000.
Assabet River National Wildlife Refuge was created in 2005.
Fox River National Wildlife Refuge was created in 1979.
Roanoke River National Wildlife Refuge was created in 1989.
Cache River National Wildlife Refuge was created in 1986.
Great River National Wildlife Refuge was created in 1958.
Little River National Wildlife Refuge was created in 1987.
Swan River National Wildlife Refuge was created in 1973.
White River National Wildlife Refuge was created in 1935.
Wallkill River National Wildlife Refuge was created in 1990.
Alligator River National Wildlife Refuge was created in 1984.
Parker River National Wildlife Refuge was created in 1942.