@misc{indiciae7cb81fbea2c5,
  title = {Effects of soils and grazing on breeding birds of uncultivated upland grasslands of the northern Great Plains},
  author = {Harold A. Kantrud and Russell L. Kologiski},
  year = {1982},
  url = {https://pubs.usgs.gov/publication/wrr15},
  note = {Source identifier: wrr15}
}