@misc{indiciae084e3b13a50c,
  title = {Changes in land use and breeding red-winged blackbird populations at Patuxent Wildlife Research Center},
  author = {Don P. Fankhauser and R.T. Mitchell},
  year = {1964},
  url = {https://pubs.usgs.gov/publication/5220665},
  note = {Source identifier: 5220665}
}