Keith Olstad:
Trumpeter Swan, Hamden Slough NWR 2436 1
Keith Olstad:
Trumpeter Swan, Old Cedar Avenue Bridge, MN Valley NWR 0889
Keith Olstad:
Trumpeter Swan, Hamden Slough NWR 2427 1
Keith Olstad:
Trumpeter Swan, Hamden Slough NWR 2422
Keith Olstad:
Trumpeter Swan, Mississippi River at Monticello, MN 3863
Keith Olstad:
Trumpeter Swan, Hamden Slough NWR 2416 1
Keith Olstad:
Trumpeter Swans, Mississippi River at Monticello, MN 3949
Keith Olstad:
Trumpeter Swan; Agassiz NWR, Thief River Falls, MN 6730
Keith Olstad:
Trumpeter Swan; Agassiz NWR, Thief River Falls, MN 6737
Keith Olstad:
Trumpeter Swan; Agassiz NWR, Thief River Falls, MN 6739
Keith Olstad:
Trumpeter Swan, juvenile, Old Cedar Ave Bridge, MN Valley NWR 2466
Keith Olstad:
Trumpeter Swan, Mississippi River at Monticello, MN 3279
Keith Olstad:
Trumpeter Swan, juvenile, Mississippi River at Monticello, MN 3342
Keith Olstad:
Trumpeter Swan, juvenile, Old Cedar Ave Bridge, MN Valley NWR 2427
Keith Olstad:
Trumpeter Swans, Mississippi River at Monticello, MN 3420
Keith Olstad:
Trumpeter Swans, Mississippi River at Monticello, MN 3430
Keith Olstad:
Trumpeter Swans, Mississippi River at Monticello, MN 3375
Keith Olstad:
Trumpeter Swans, Mississippi River at Monticello, MN 3886
Keith Olstad:
Trumpeter Swans, Mississippi River at Monticello, MN 3952
Keith Olstad:
Trumpeter Swans, Mississippi River at Monticello, MN 3883
Keith Olstad:
Trumpeter swans, Mississippi River at MontIcello, MN 4259
Keith Olstad:
Trumpeter Swan, Bass Ponds, Bloomington 9935
Keith Olstad:
Trumpter Swans, Old Cedar Avenue Bridge, MN Valley NWR 0703
Keith Olstad:
Trumpeter Swan, Purgatory Creek, Eden Prairie 0255
Keith Olstad:
Trumpeter Swan; Veterans Memorial Park, Richfield, MN 3629
Keith Olstad:
Trumpeter Swans, Purgatory Creek, Eden Prairie 0238
Keith Olstad:
Tundra Swan, Brownsville, MN 9601
Keith Olstad:
Tundra Swan, Brownsville, MN 9674
Keith Olstad:
Tundra Swans, Weaver Bottoms, MN 2365
Keith Olstad:
Trumpeter Swans; Agassiz NWR, Thief River Falls, MN 7048
