@misc{indiciaeac156eff39f2,
  title = {Adaptation, constraint, and compromise in avian postnatal development.},
  author = {R E Ricklefs},
  year = {1979},
  doi = {10.1111/j.1469-185x.1979.tb01013.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/389304/},
  note = {Source identifier: 389304}
}