@misc{indiciaeeb605c3e56fd,
  title = {Status and breeding ecology of the southwestern willow flycatcher in the Grand Canyon},
  author = {Mark K. Sogge and Timothy J. Tibbitts and Jim R. Petterson},
  year = {1997},
  url = {https://pubs.usgs.gov/publication/1015829},
  note = {Source identifier: 1015829}
}