TY  - RPRT
TI  - Geographic patterns in relative abundances and population trends of breeding and wintering loggerhead shrikes in North America
AU  - J.R. Sauer
AU  - Sandra Orsillo
AU  - B.G. Peterjohn
PY  - 1995
UR  - https://pubs.usgs.gov/publication/5210723
ID  - 5210723
ER  -