@misc{indiciae99fda871c246,
  title = {Diving depths of four alcids},
  author = {John F. Piatt and David N. Nettleship},
  year = {1985},
  doi = {10.2307/4086771},
  url = {https://pubs.usgs.gov/publication/70185101},
  note = {Source identifier: 70185101}
}