@misc{indiciae07f6d03b80e9,
  title = {Structure of the New England herring gull population},
  author = {John A. Kadlec and William H. Drury},
  year = {1968},
  doi = {10.2307/1935530},
  url = {https://pubs.usgs.gov/publication/5220556},
  note = {Source identifier: 5220556}
}