@misc{indiciaef130662cc06c,
  title = {Design considerations for monitoring land birds in Channel Islands National Park},
  author = {M. K. Sogge and Charles van Riper and C.A. Drost},
  year = {1989},
  url = {https://pubs.usgs.gov/publication/70123155},
  note = {Source identifier: 70123155}
}