@misc{indiciae65aad03728ba,
  title = {Twenty-ninth winter bird-population study. 12. Hickory-oak-ash floodplain forest},
  author = {C.S. Robbins},
  year = {1976},
  url = {https://pubs.usgs.gov/publication/5220875},
  note = {Source identifier: 5220875}
}