Region
United States
18
Alaska
4
Colorado
4
Louisiana
4
California
3
Africa
2
Iowa
2
Lacassine National Wildlife Refuge
2
Lacassine National Wildlife Refuge (La.)
2
Nebraska
2
North Dakota
2
Rainwater Basin Wetland Management District
2
Rainwater Basin Wetland Management District (Neb.)
2
Shell Keys National Wildlife Refuge
2
Shell Keys National Wildlife Refuge (La.)
2
Yukon Flats National Wildlife Refuge (Alaska)
2
Arctic National Wildlife Refuge
1
Arctic National Wildlife Refuge (Alaska)
1
Boulder Region
1
Cape Hatteras National Seashore
1
Cape Hatteras National Seashore (N.C.)
1
Crocodile Lake National Wildlife Refuge (Key Largo, Fla.)
1
Des Lacs National Wildlife Refuge
1
Des Lacs National Wildlife Refuge (N.D.)
1
Europe
1
Florida
1
Great Plains
1
Horicon National Wildlife Refuge
1
Horicon National Wildlife Refuge (Wis.)
1
Iran
1
J. Clark Salyer National Wildlife Refuge
1
J. Clark Salyer National Wildlife Refuge (N.D.)
1
Kanuti National Wildlife Refuge
1
Kanuti National Wildlife Refuge (Alaska)
1
Kenya
1
Mexico
1
Mille Lacs Wildlife Management Area
1
Mingo National Wildlife Refuge
1
Mingo National Wildlife Refuge (Mo.)
1
Minnesota
1
Missouri
1
Nevada
1
North America
1
North Carolina
1
Oregon
1
Ozark Cavefish National Wildlife Refuge
1
Ozark Cavefish National Wildlife Refuge (Mo.)
1
Pilot Knob National Wildlife Refuge
1
Pilot Knob National Wildlife Refuge (Mo.)
1
Rice Lake National Wildlife Refuge
1
more ...