@misc{indiciaeec8921a13afb,
  title = {Ecology of common ravens at the Marine Corps Air Ground Combat Center, Twentynine Palms, California: Annual progress report covering research conducted between December 9, 2002 and December 13, 2003, United States Geological Survey, Biological Resources Discipline, San Diego, California},
  author = {H.D. Chamblin and W.I. Boarman},
  year = {2004},
  url = {https://pubs.usgs.gov/publication/96984},
  note = {Source identifier: 96984}
}