TY  - RPRT
TI  - Pesticide and PCB residues for loggerhead shrikes in the Shenandoah Valley
AU  - A. K. Blumton
AU  - J.D. Fraser
AU  - R.W. Young
AU  - S. Goodbred
AU  - S.L. Porter
AU  - D.L. Luukkonen
PY  - 1990
DO  - 10.1007/bf01700988
UR  - https://pubs.usgs.gov/publication/70198473
ID  - 70198473
ER  -