@misc{indiciae0287f24d60cb,
  title = {Survival of Mallard broods in Benton Lake National Wildlife Refuge in north central Montana},
  author = {Dennis L Orthmeyer and I.J. Ball},
  year = {1990},
  doi = {10.2307/3808901},
  url = {https://pubs.usgs.gov/publication/1007602},
  note = {Source identifier: 1007602}
}