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Title: "U.S. Geological Survey open-file report ;"
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Oregon

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1.
Effects of barred owl (Strix varia) removal on population demography of northern spotted owls (Strix occidentalis caurina) in Washington and Oregon, 2015-18
Published
Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2019-
Online
https://purl.fdlp.gov/GPO/gpo150190
Location
Yale Internet Resource >> None
Format
Journals & Newspapers / Online
2.
Effects of experimental removal of barred owls on population demography of northern spotted owls in Washington and Oregon : ... progress report
Published
Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2016-2018.
Online
https://purl.fdlp.gov/GPO/gpo150334
Location
Yale Internet Resource >> None
Format
Journals & Newspapers / Online
3.
Juvenile lost river and shortnose sucker year-class formation, survival, and growth in Upper Klamath Lake, Oregon and Clear Lake Reservoir, California : ... monitoring report
Published
Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2018-
Online
https://purl.fdlp.gov/GPO/gpo183784
Location
Yale Internet Resource >> None
Format
Journals & Newspapers / Online