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  1. A multi-scale analysis linking prairie breeding birds to site and landscape factors including USGS GAP data /
    By: Hendricks, Paul. - Kudray, Gregory M. - Lenard, Susan. - Maxell, Bryce. - Montana Natural Heritage Program.
    Publication info: Helena, Mont. :Montana Natural Heritage Program,c2007.
    Contributed by: Montana State Library (archive.org)
    Subjects: Big Horn County  Bird populations  Carter County  Custer County  Grassland birds  Montana  Plants  Powder River Basin Ecological Section  Prairie County  
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  2. Roadside bird counts on BLM lands in Petroleum and Fergus counties, Montana / submitted by Paul Hendricks; a report to Bureau of Land Management, Lewistown Field Office.
    By: Hendricks, P. - Montana Natural Heritage Program. - United States.
    Publication info: Helena, Mont. :Montana Natural Heritage Program,c2000.
    Contributed by: Montana State Library (archive.org)
    Subjects: Baird's sparrow  Bird surveys  Birds  Brewer's sparrow  Brown-headed cowbird  Counting  Fergus County  Geographical distribution  Grasshopper sparrow  Grassland birds  Lark bunting  Long-billed curlew  Montana  Musselshell River (Mont.)  Petroleum County  Ponderosa pine  Roadside transect  Sage thrasher  Sagebrush  Savannah sparrow  Short-eared owl  Sprague's pipit  Upland sandpiper  Vesper sparrow  Western meadowlark  
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