Region
Colorado
37
United States
34
Louisiana
18
Florida
17
North Carolina
16
California
8
Nebraska
8
Alaska
7
Rhode Island
7
North Dakota
5
Tennessee
5
Rocky Mountains
4
South Carolina
4
Washington (State)
4
Alabama
3
Indiana
3
Iowa
3
Lacassine National Wildlife Refuge (La.)
3
Mexico
3
Michigan
3
Minnesota
3
Mississippi
3
New Mexico
3
Alaska Peninsula National Wildlife Refuge
2
Alaska Peninsula National Wildlife Refuge (Alaska)
2
Alligator River National Wildlife Refuge
2
Alligator River National Wildlife Refuge (N.C.)
2
Archie Carr National Wildlife Refuge
2
Archie Carr National Wildlife Refuge (Fla.)
2
Arkansas
2
Arthur R. Marshall Loxahatchee National Wildlife Refuge (Fla.)
2
Becharof National Wildlife Refuge
2
Becharof National Wildlife Refuge (Alaska)
2
Breton National Wildlife Refuge
2
Breton National Wildlife Refuge (La.)
2
California Coastal National Monument (Calif.)
2
California Desert National Conservation Area (Calif.)
2
Currituck National Wildlife Refuge
2
Currituck National Wildlife Refuge (N.C.)
2
Delta National Wildlife Refuge
2
Delta National Wildlife Refuge (La.)
2
Eufaula National Wildlife Refuge (Ala. and Ga.)
2
Georgia
2
Grand Bay National Wildlife Refuge (Ala. and Miss.)
2
Great Meadows National Wildlife Refuge (Mass.)
2
Handy Brake National Wildlife Refuge
2
Handy Brake National Wildlife Refuge (La.)
2
Kanuti National Wildlife Refuge
2
Kanuti National Wildlife Refuge (Alaska)
2
Kentucky
2
more ...