@misc{indiciae0ce683de14ba,
  title = {Common Raven},
  author = {W.I. Boarman and B. Heinrich},
  year = {1999},
  doi = {10.2173/bna.476},
  url = {https://pubs.usgs.gov/publication/70006438},
  note = {Source identifier: 70006438}
}