TY  - RPRT
TI  - Grassland birds: An overview of threats and recommended management strategies
AU  - P.D. Vickery
AU  - J.R. Herkert
AU  - F.L. Knopf
AU  - J. Ruth
AU  - C.E. Keller
PY  - 2000
UR  - https://pubs.usgs.gov/publication/5210995
ID  - 5210995
ER  -