@misc{indiciae33a8db062788,
  title = {Ecological studies of breeding bird populations in northern Maine},
  author = {Robert E. Stewart and John W. Aldrich},
  year = {1952},
  doi = {10.2307/1930641},
  url = {https://pubs.usgs.gov/publication/5220118},
  note = {Source identifier: 5220118}
}