@misc{indiciaef842be83e1af,
  title = {Bird evolution.},
  author = {Julia Clarke and Kevin Middleton},
  year = {2006},
  doi = {10.1016/j.cub.2006.04.023},
  url = {https://pubmed.ncbi.nlm.nih.gov/16713939/},
  note = {Source identifier: 16713939}
}