@misc{indiciae182f0294287b,
  title = {Field notes on birds observed in Dakota and Montana along the forty-ninth parallel during the seasons of 1873 and 1874},
  author = {Elliott Coues},
  year = {1878},
  doi = {10.3133/70159117},
  url = {https://pubs.usgs.gov/publication/70159117},
  note = {Source identifier: 70159117}
}