@misc{indiciae6f7167e97249,
  title = {Herons in North America, Central America and the West Indies},
  author = {Robert W. Butler and J.A. Kushlan and I.J. Davidson},
  year = {2000},
  url = {https://pubs.usgs.gov/publication/5211040},
  note = {Source identifier: 5211040}
}