@misc{indiciae9e3a3296ffa1,
  title = {Industrial strength herons: the black-crowns of Baltimore},
  author = {R.M. Erwin and V. Anders and A.K. Miles},
  year = {1990},
  url = {https://pubs.usgs.gov/publication/1017336},
  note = {Source identifier: 1017336}
}