TY  - RPRT
TI  - Response of vegetation and breeding birds to the removal of cattle on the San Pedro River, Arizona (U.S.A.)
AU  - D. Krueper
AU  - Jonathan Bart
AU  - T. Rich
PY  - 2003
UR  - https://pubs.usgs.gov/publication/1016231
ID  - 1016231
ER  -