BI-50-207
Tundra Swans (Cygnus columbianus), Lake Mattamuskeet NWR,
BI-50-208
Tundra Swans (Cygnus columbianus), Lake Mattamuskeet NWR,
BI-50-210
Tundra Swans (Cygnus columbianus), Lake Mattamuskeet NWR,
BI-50-218
Tundra Swans (Cygnus columbianus), Lake Mattamuskeet NWR,
BI-50-219
Tundra Swans (Cygnus columbianus), Lake Mattamuskeet NWR,
BI-50-231
Tundra Swans (Cygnus columbianus), Lake Mattamuskeet NWR,
BI-50-243
Tundra Swans (Cygnus columbianus), Lake Mattamuskeet NWR,
BI-50-245
Tundra Swans (Cygnus columbianus), Lake Mattamuskeet NWR,
BI-50-276
Tundra Swans (Cygnus columbianus), Lake Mattamuskeet NWR,
BI-50-283
Tundra Swans (Cygnus columbianus), Lake Mattamuskeet NWR,

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