@misc{indiciae7f5efb867806,
  title = {Waterbirds of the Chesapeake Bay region: An introduction},
  author = {R.M. Erwin and G.M. Haramis and Matthew C. Perry and B.D. Watts},
  year = {2007},
  url = {https://pubs.usgs.gov/publication/5211414},
  note = {Source identifier: 5211414}
}