@misc{indiciaef11644bbf470,
  title = {Comparative toxicity of lead shot in black ducks (Anas rubripes) and mallards (Anas platyrhynchos)},
  author = {Barnett A. Rattner and W. James Fleming and C.M. Bunck},
  year = {1989},
  doi = {10.7589/0090-3558-25.2.175},
  url = {https://pubs.usgs.gov/publication/5222246},
  note = {Source identifier: 5222246}
}