@misc{indiciaeaa588719f55d,
  title = {Identification and synthetic modeling of factors affecting American black duck populations},
  author = {Michael J. Conroy and Mark W. Miller and James E. Hines},
  year = {2002},
  url = {https://pubs.usgs.gov/publication/5230269},
  note = {Source identifier: 5230269}
}