Subject
- Forest products -- Research -- Oregon2
- Forests and forestry -- Research -- Oregon2
- Oregon State University. College of Forestry2
- Oregon State University. Forest Research Laboratory2
- Cavity-nesting birds -- Oregon -- Bibliography1
- Cavity-nesting birds -- Washington (State) -- Bibliography1
- Forest animals -- Habitat -- Oregon -- Bibliography1
- Forest animals -- Habitat -- Washington (State) -- Bibliography1
- Habitat (Ecology) -- Oregon -- Bibliography1
- Habitat (Ecology) -- Washington (State) -- Bibliography1
- Oak1
- Snags (Forestry) -- Oregon -- Bibliography1
- Snags (Forestry) -- Washington (State) -- Bibliography1