Loss of sagebrush ecosystems and declining bird populations in the intermountain West [electronic resource] : priority research issues and information needs.
Imprint
Boise, ID : USGS Forest and Rangeland Ecosystem Science Center, Snake River Field Station, [2002]
Mode of access: Internet from the USGS web site. Address as of 2/13/07: http://fresc.usgs.gov/products/fs/fs-122-02.pdf ; current access is available via PURL.