@misc{indiciae683ff17ff646,
  title = {Mallard mortality rates on key breeding and wintering areas},
  author = {R.J. Blohm and R. E. Reynolds and Judith P. Bladen and J.D. Nichols and J.E. Hines and K. H. Pollock and R.T. Eberhardt},
  year = {1987},
  url = {https://pubs.usgs.gov/publication/5222201},
  note = {Source identifier: 5222201}
}