@misc{indiciae8aded105e144,
  title = {A method for trapping breeding adult gulls},
  author = {D.K. Weaver and J.A. Kadlec},
  year = {1970},
  doi = {10.2307/4511621},
  url = {https://pubs.usgs.gov/publication/5220032},
  note = {Source identifier: 5220032}
}