@misc{indiciae4efac1acfe95,
  title = {Twenty-ninth winter bird population study. No. 54. Pinyon-juniper woodland},
  author = {J.V. Remsen and K.H. Berry and E. Wessman},
  year = {1976},
  url = {https://pubs.usgs.gov/publication/1007777},
  note = {Source identifier: 1007777}
}