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Topic
- Birds--Conservation 23
- Wildlife refuges 23
- Lectures and lecturing 10
- Rivers--Oregon 4
- Conservation of natural resources 2
- Dams 2
- Salmon 2
- Eagles 1
- Fishing 1
- Geese 1
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Region
- Malheur National Wildlife Refuge >> Harney County >> Oregon >> United States 23
- Lower Klamath National Wildlife Refuge >> Siskiyou County >> California >> United States 9
- Columbia River >> Clatsop County >> Oregon >> United States 3
- Tule Lake National Wildlife Refuge >> Siskiyou County >> California >> United States 3
- Blitzen Valley >> Harney County >> Oregon >> United States 2
- Clear Lake National Wildlife Refuge >> Modoc County >> California >> United States 2
- Portland >> Washington County >> Oregon >> United States 2
- Detroit >> Wayne County >> Michigan >> United States 1
- Hart Mountain National Antelope Refuge >> Lake County >> Oregon >> United States 1
- Jackson Hole >> Teton County >> Wyoming >> United States 1
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Repository
- Oregon State University. Libraries 23