@misc{indiciae305a4aec926c,
  title = {Conservation reserve program: benefit for grassland birds in the northern plains},
  author = {R. E. Reynolds and T.L. Shaffer and J.R. Sauer and B.G. Peterjohn},
  year = {1994},
  url = {https://pubs.usgs.gov/publication/5222719},
  note = {Source identifier: 5222719}
}