@misc{indiciaef313e6cf1664,
  title = {Population status and trends of grouse and prairie-chickens from the North American Breeding Bird Survey and Christmas Bird Count},
  author = {J.R. Sauer and Sandra Orsillo and B.G. Peterjohn},
  year = {1994},
  url = {https://pubs.usgs.gov/publication/5222717},
  note = {Source identifier: 5222717}
}