TY  - RPRT
TI  - Southwestern willow flycatcher populations in southern California: distribution, abundance, and potential for conservation
AU  - B.E. Kus
AU  - P.P. Beck
AU  - J.M. Wells
PY  - 2003
UR  - https://pubs.usgs.gov/publication/1008385
ID  - 1008385
ER  -