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2019 [3]
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Distribution and abundance of Least Bell’s Vireos (Vireo bellii pusillus) and Southwestern Willow Flycatchers (Empidonax traillii extimus) on the Middle San Luis Rey River, San Diego County, Southern California—2018 data summary [研究报告]
10.3133/ds1109U.S. Geological Survey. 2019-01-01
Allen, Lisa D. ldallen@usgs.gov;  Kus, Barbara E. barbara_kus@usgs.gov
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Least Bell’s Vireo (Vireo bellii pusillus) and Southwestern Willow Flycatcher (Empidonax traillii extimus) surveys in the Sepulveda Dam Basin, Los Angeles County, California—2018 data summary [研究报告]
10.3133/ds1105U.S. Geological Survey. 2019-01-01
Pottinger, Ryan E.;  Kus, Barbara E. barbara_kus@usgs.gov
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Least Bell’s Vireo (Vireo bellii pusillus) and Southwestern Willow Flycatcher (Empidonax traillii extimus) surveys in the Hansen Dam Basin, Los Angeles County, California—2018 data summary [研究报告]
10.3133/ds1103U.S. Geological Survey. 2019-01-01
Pottinger, Ryan E.;  Kus, Barbara E. barbara_kus@usgs.gov
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