@misc{indiciaedf34aeb00ee7,
  title = {Habitat relationships and nest site characteristics of cavity-nesting birds in cottonwood floodplains},
  author = {James A. Sedgwick and Fritz L. Knopf},
  year = {1990},
  doi = {10.2307/3808910},
  url = {https://pubs.usgs.gov/publication/70125374},
  note = {Source identifier: 70125374}
}