@misc{indiciae00b945a5e002,
  title = {Element patterns in feathers of nestling Black-Crowned Night-Herons, Nycticorax nycticorax L., from four colonies in Delaware, Maryland, and Minnesota},
  author = {Thomas W. Custer and Nancy H. Golden and Barnett A. Rattner},
  year = {2008},
  doi = {10.1007/s00128-008-9444-3},
  url = {https://pubs.usgs.gov/publication/5224884},
  note = {Source identifier: 5224884}
}