@misc{indiciae865688f3df8f,
  title = {Migration and winter distributions of canvasbacks staging on the Upper Mississippi River},
  author = {J.R. Serie and D.L. Trauger and D.E. Sharp},
  year = {1983},
  doi = {10.2307/3808609},
  url = {https://pubs.usgs.gov/publication/1001267},
  note = {Source identifier: 1001267}
}