@misc{indiciae116cfa85b56a,
  title = {Hanging out at the airport: Unusual upside-down perching behavior by Eurasian Jackdaws (Corvus monedula) in a human-dominated environment},
  author = {Todd E. Katzner},
  year = {2016},
  doi = {10.1676/15-211.1},
  url = {https://pubs.usgs.gov/publication/70182518},
  note = {Source identifier: 70182518}
}