@misc{indiciae60a60e94baf8,
  title = {Forty-fourth breeding bird census. 60. Beech-spruce-hemlock forest},
  author = {Sam Droege and B.R. Noon},
  year = {1981},
  url = {https://pubs.usgs.gov/publication/5221709},
  note = {Source identifier: 5221709}
}