TY  - RPRT
TI  - Distribution and abundance of Least Bell's Vireos and Southwestern Willow Flycatchers on the middle San Luis Rey River, San Diego County, southern California—2020 data summary
AU  - Lisa D. Allen
AU  - Barbara E. Kus
PY  - 2021
DO  - 10.3133/ds1134
UR  - https://pubs.usgs.gov/publication/ds1134
ID  - ds1134
ER  -