@misc{indiciae7b4aa7caf1ef,
  title = {Distribution and abundance of Southwestern Willow Flycatchers (Empidonax traillii extimus) on the upper San Luis Rey River, San Diego County, California—2020 data summary},
  author = {Scarlett L. Howell and Barbara E. Kus},
  year = {2021},
  doi = {10.3133/ds1140},
  url = {https://pubs.usgs.gov/publication/ds1140},
  note = {Source identifier: ds1140}
}