@misc{indiciae6b51d759a71e,
  title = {Twelfth breeding-bird census: 13. Mixed oak forest},
  author = {C.H. Kolb and C.S. Robbins and E.C. Robbins},
  year = {1948},
  url = {https://pubs.usgs.gov/publication/5222379},
  note = {Source identifier: 5222379}
}