@misc{indiciaec9e07182c3c7,
  title = {Feeding ecology of canvasbacks staging on Pool 7 of the Upper Mississippi River},
  author = {C. E. Korschgen and L. S. George and W. L. Green},
  year = {1988},
  url = {https://pubs.usgs.gov/publication/85384},
  note = {Source identifier: 85384}
}