@misc{indiciae31a18a4844dd,
  title = {Thirty-seventh breeding-bird census. 12. Hickory-oak-ash floodplain forest},
  author = {C.S. Robbins},
  year = {1973},
  url = {https://pubs.usgs.gov/publication/5220893},
  note = {Source identifier: 5220893}
}