@misc{indiciae6bba7fad192b,
  title = {Population trends and environmental contaminants in herons in the Tennessee Valley, 1980-81},
  author = {W. James Fleming and B.P. Pullin and D. M. Swineford},
  year = {1984},
  doi = {10.2307/1521083},
  url = {https://pubs.usgs.gov/publication/5221968},
  note = {Source identifier: 5221968}
}