@misc{indiciae6ad577585cdd,
  title = {Habitat use, survival, and causes of mortality among mallard broods hatched near the James River in North Dakota},
  author = {Gary L. Krapu and C.R. Luna},
  year = {1991},
  url = {https://pubs.usgs.gov/publication/1001391},
  note = {Source identifier: 1001391}
}