@misc{indiciae839eb59e1879,
  title = {The eighty-first Audubon Christmas bird count. 411. Back Bay National Wildlife Refuge, Va},
  author = {P.W. Sykes},
  year = {1981},
  url = {https://pubs.usgs.gov/publication/5223436},
  note = {Source identifier: 5223436}
}