@misc{indiciae9ca3d7cc1990,
  title = {Bird censuses 115-120: Kentucky bluegrass prairie and mixed prairie I-V},
  author = {Douglas H. Johnson and M.D. Schwartz},
  year = {1992},
  url = {https://pubs.usgs.gov/publication/1001173},
  note = {Source identifier: 1001173}
}