@misc{indiciaef66710b1d6cb,
  title = {Observation of directional thermal soaring preference in vultures},
  author = {Holliday H. Obrecht},
  year = {2008},
  doi = {10.1111/j.1474-919x.1988.tb00982.x},
  url = {https://pubs.usgs.gov/publication/5222415},
  note = {Source identifier: 5222415}
}