@misc{indiciae4ab7ec75d1d5,
  title = {Productivity of the spruce grouse in fragmented habitat at the edge of its range},
  author = {S.D. Whitcomb and A.F. O'Connell and F. A. Servello},
  year = {1996},
  url = {https://pubs.usgs.gov/publication/5223415},
  note = {Source identifier: 5223415}
}