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Region
- Malheur Lake >> Harney County >> Oregon >> United States 35
- San Francisco Bay >> San Mateo County >> California >> United States 28
- Aransas Pass >> San Patricio County >> Texas >> United States 20
- Silver Lake >> Lake County >> Oregon >> United States 19
- Lower Klamath Lake >> Siskiyou County >> California >> United States 14
- San Francisco >> San Francisco County >> California >> United States 9
- Portland >> Washington County >> Oregon >> United States 6
- Upper Klamath Lake >> Klamath County >> Oregon >> United States 1
Format
- image/tiff 132
Institution
- Oregon Historical Society 132
Taxon Class
- Aves 132
Order
- Pelecaniformes 132
- Suliformes 1
Family
- Ardeidae 132
- Phalacrocoracidae 1
Genus
- Ardea 82
- Nycticorax 28
- Egretta 18
- Phalacrocorax 1