@misc{indiciae87120d55366f,
  title = {Tumbling in pigeons.},
  author = {R K Entrikin and S H Bryant},
  year = {1974},
  doi = {10.1038/252706a0},
  url = {https://pubmed.ncbi.nlm.nih.gov/4437622/},
  note = {Source identifier: 4437622}
}