@misc{indiciae3cb1acf72bca,
  title = {Conditioning of sandhill cranes during fall migration},
  author = {Gary L. Krapu and Douglas H. Johnson},
  year = {1990},
  doi = {10.2307/3809035},
  url = {https://pubs.usgs.gov/publication/1001513},
  note = {Source identifier: 1001513}
}