@misc{indiciae80590c0928dd,
  title = {A hierarchical model for regional analysis of population change using Christmas Bird Count data, with application to the American Black Duck},
  author = {W.A. Link and J.R. Sauer and D.K. Niven},
  year = {2006},
  url = {https://pubs.usgs.gov/publication/5224606},
  note = {Source identifier: 5224606}
}