Subject
- Bird populations -- Oregon3
- Bird populations2
- Game and game-birds -- Oregon2
- Bird communities -- Oregon -- H.J. Andrews Experimental Forest1
- Bird communities -- Siskiyou Mountains (Calif. and Or.)1
- Bird populations -- Coast Ranges1
- Bird populations -- Klamath National Forest (Calif. and Or.)1
- Birds -- Effect of fires on -- Oregon1
- Birds -- Geographical distribution1
- Birds -- Klamath National Forest (Calif. and Or.) -- Infancy1
- Birds -- Oregon1
- Birds -- Oregon -- Reproduction1
- Birds -- Oregon -- Wallowa County1
- Birds -- Oregon, Western1
- Birds -- Wintering -- Oregon -- Willamette River Valley1
- Birds of prey -- Oregon1
- Biscuit Fire, Or. and Calif., 20021
- Biscuit Fire, Or. and Calif., 2002 -- Environmental aspects1
- Blue mud shrimp -- Age determination -- Oregon -- Yaquina Bay1
- Blue mud shrimp -- Oregon -- Yaquina Bay -- Growth1