@misc{indiciaefdfe008b6e4e,
  title = {Human disturbances of waterfowl: An annotated bibliography},
  author = {R.B. Dahlgren and C. E. Korschgen},
  year = {1992},
  url = {https://pubs.usgs.gov/publication/2000896},
  note = {Source identifier: 2000896}
}