Columbia subject headings:
Big sagebrush--Great Basin.
Bird populations--Great Basin--Geographical distribution.
Birds--Habitat--Great Basin.
Harvard subject headings:
Big sagebrush--Great Basin.
Bird populations--Great Basin--Geographical distribution.
Birds--Habitat--Great Basin.
Princeton subject headings:
Big sagebrush--Ecology--West (U.S.).
Bird populations--West (U.S.).
Birds--Counting--West (U.S.).
Birds--Effect of fires on--West (U.S.).