@misc{indiciae8dd8de328c4f,
  title = {Modeling participation duration, with application to the North American Breeding Bird Survey},
  author = {William A. Link and John R. Sauer},
  year = {2014},
  doi = {10.1080/03610926.2014.957854},
  url = {https://pubs.usgs.gov/publication/70175449},
  note = {Source identifier: 70175449}
}