TY - RPRT TI - Distribution and abundance of Least Bell’s Vireos ( Vireo bellii pusillus ), Southwestern Willow Flycatchers ( Empidonax traillii extimus ), and Coastal California Gnatcatchers ( Polioptila californica californica ) at the Carbon Canyon Dam, Orange County, California—2025 data summary AU - Scarlett L. Howell AU - Barbara E. Kus PY - 2026 DO - 10.3133/dr1221 UR - https://pubs.usgs.gov/publication/dr1221 ID - dr1221 ER -