@misc{indiciaef39bda297188,
  title = {Lethal dietary toxicities of environmental pollutants to birds.},
  author = {Elwood F. Hill and Robert G. Heath and James W. Spawn and Joseph D. Williams},
  year = {1975},
  url = {https://pubs.usgs.gov/publication/ssrw191},
  note = {Source identifier: ssrw191}
}