@misc{indiciaec3c3bf85e15f,
  title = {Hazards to animals feeding on blackbirds killed with 4-aminopyridine baits},
  author = {E. W. Schafer and R.B. Brunton and Norman F. Lockyer},
  year = {1974},
  doi = {10.2307/3800872},
  url = {https://pubs.usgs.gov/publication/70194972},
  note = {Source identifier: 70194972}
}