@misc{indiciaeb2e79ab45edc,
  title = {Decline and present status of breeding Peregrine Falcons in Oregon},
  author = {Charles J. Henny and M.W. Nelson},
  year = {1981},
  doi = {10.2307/3534174},
  url = {https://pubs.usgs.gov/publication/5221681},
  note = {Source identifier: 5221681}
}