@misc{indiciaeb89996e8c3e5,
  title = {Statistical analyses make the Christmas Bird Count relevant for conservation},
  author = {J.R. Sauer and W.A. Link and D.K. Niven},
  year = {2004},
  url = {https://pubs.usgs.gov/publication/5224483},
  note = {Source identifier: 5224483}
}