@misc{indiciaecf7ff8eaa74d,
  title = {Spring and summer survival of female mallards from northcentral Minnesota},
  author = {Ronald E. Kirby and Lewis M. Cowardin},
  year = {1986},
  doi = {10.2307/3801485},
  url = {https://pubs.usgs.gov/publication/1001443},
  note = {Source identifier: 1001443}
}