Keith Olstad:
Ring-billed Gull, second year, Duluth Harbor 6286
Keith Olstad:
California gull 1885
Keith Olstad:
Ring-billed Gull, Bass Ponds, Bloomington 2178
Keith Olstad:
Ring-billed Gull, French River, Superior's North Shore 4192
Keith Olstad:
Herring Gull, French River, Superior's North Shore 4193
Keith Olstad:
Bonaparte's Gull, Park Point, Duluth 4162
Keith Olstad:
Bonaparte's Gull, Park Point, Duluth 4153
Keith Olstad:
Bonaparte's Gull, 180th Street Marsh, Lakeville 6625
Keith Olstad:
Bonaparte's Gull, 180th Street Marsh, Lakeville 6622
Keith Olstad:
Franklin's Gull, Plover Prairie, Big Stone NWR 6918
Keith Olstad:
Franklin's Gulls, Plover Prairie, Big Stone NWR 6939
Keith Olstad:
Ring-billed Gull, Park Point, Duluth 4145
Keith Olstad:
Ring-billed Gull, Park Point, Duluth 4143
Keith Olstad:
Ring-billed Gull, Bass Ponds, MN Valley NWR 5336
Keith Olstad:
Ring-billed Gull, Bass Ponds, MN Valley NWR 5328
Keith Olstad:
Ring-billed Gull, Bass Ponds, MN Valley NWR 5322
Keith Olstad:
Ring-billed Gull, Bass Ponds, MN Valley NWR 5314
Keith Olstad:
Ring-billed Gull, Bass Ponds, MN Valley NWR 5313
Keith Olstad:
Ring-billed Gull, Wood Lake Nature Center, Richfield, MN 6433
Keith Olstad:
Ring-billed Gull, Wood Lake Nature Center, Richfield, MN 6429
Keith Olstad:
Ring-billed Gull, North Ottawa Impoundment, Grant County 4128
Keith Olstad:
Ring-billed Gull, North Ottawa Impoundment, Grant County 4128
Keith Olstad:
Ring-billed Gull, North Ottawa Impoundment, Grant County 4128
Keith Olstad:
Ring-billed Gull, juvenile; Park Point, Duluth 4539
Keith Olstad:
Forster's Tern, Plover Prairie, Big Stone NWR 6727
Keith Olstad:
Forster's Tern, Plover Prairie, Big Stone NWR 6721
Keith Olstad:
Caspian Tern, Long Meadow Lake, MN Valley NWR 4335
Keith Olstad:
Caspian Tern, Veterans Memorial Park, Richfield 8128
Keith Olstad:
Caspian Tern, Veterans Memorial Park, Richfield 8126
Keith Olstad:
Caspian Tern, Wood Lake Nature Center, Richfield 7952
