@misc{indiciaeb7e973690e32,
  title = {Re-evaluation of some Montana bird records},
  author = {P.D. Skaar and R. B. Clapp and Richard C. Banks},
  year = {1973},
  doi = {10.2307/1366550},
  url = {https://pubs.usgs.gov/publication/5223470},
  note = {Source identifier: 5223470}
}