TY  - RPRT
TI  - Cliff swallows Petrochelidon pyrrhonota as bioindicators of environmental mercury, Cache Creek Watershed, California
AU  - Roger L. Hothem
AU  - Bonnie S. Trejo
AU  - Marissa L. Bauer
AU  - John J. Crayon
PY  - 2008
DO  - 10.1007/s00244-007-9082-5
UR  - https://pubs.usgs.gov/publication/70033187
ID  - 70033187
ER  -