This study expands on the efforts started in 2015 in documenting the status of Southwestern Willow Flycatchers in San Diego County, California. It specifically evaluates the level of parasitism from the Brown-headed Cowbird on flycatcher populations at Lake Henshaw on collecting data on nest success, productivity, and parasitism rate.
Southwestern willow flycatcher
| File name | Lead Author | Year | Type |
|---|---|---|---|
| Distribution, Abundance, and Breeding Activities of Southwestern Willow Flycatchers (Empidonax traillii extimus) at Select Locations on the San Luis Rey River, San Diego County, California—2024 Data Summary | Howell, Scarlett L.; Kus, Barbara | 2024 | report |
| File name |
|---|
| SouthwesternWillow_2024.zip |