@misc{indiciaea594788c77c7,
  title = {[Book review] Ducks, Geese, and Swans of North America, by F. C. Bellrose},
  author = {Matthew C. Perry},
  year = {1977},
  url = {https://pubs.usgs.gov/publication/5220916},
  note = {Source identifier: 5220916}
}