@misc{indiciae2b4295b1d7c6,
  title = {Regionwide polygyny in willow flycatchers},
  author = {James A. Sedgwick and Fritz L. Knopf},
  year = {1989},
  doi = {10.2307/1368329},
  url = {https://pubs.usgs.gov/publication/70123418},
  note = {Source identifier: 70123418}
}