@misc{indiciae509ec7895702,
  title = {Winter use of douglas-fir forests by Blue Grouse in Colorado},
  author = {Brian S. Cade and Richard W. Hoffman},
  year = {1990},
  doi = {10.2307/3809661},
  url = {https://pubs.usgs.gov/publication/70124342},
  note = {Source identifier: 70124342}
}