@misc{indiciaed3c179c52a2b,
  title = {Breeding biology and relation of pollutants to black skimmers and gull-billed terns in South Carolina},
  author = {Lawrence J. Blus and Charles J. Stafford},
  year = {1980},
  url = {https://pubs.usgs.gov/publication/ssrw230},
  note = {Source identifier: ssrw230}
}