TY  - RPRT
TI  - Density and success of bird nests relative to grazing on western Montana grasslands
AU  - Thomas F. Fondell
AU  - I.J. Ball
PY  - 2004
DO  - 10.1016/s0006-3207(03)00293-3
UR  - https://pubs.usgs.gov/publication/70027296
ID  - 70027296
ER  -