@misc{indiciaeea2770d742f1,
  title = {Thirty-second winter bird-population study. 9. Hickory--oak--ash floodplain forest},
  author = {C.S. Robbins},
  year = {1980},
  url = {https://pubs.usgs.gov/publication/5221565},
  note = {Source identifier: 5221565}
}