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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—2021 Data summary

January 10, 2022
Publication Year 2022
Title 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—2021 Data summary
DOI 10.3133/dr1147
Authors Lisa D. Allen, Barbara E. Kus
Publication Type Report
Publication Subtype USGS Numbered Series
Series Title Data Report
Series Number 1147
Index ID dr1147
Record Source USGS Publications Warehouse
USGS Organization Western Ecological Research Center
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