@misc{indiciae16a49388a317,
  title = {Biogeographical profiles of shorebird migration in midcontinental North America},
  author = {Susan K. Skagen and Peter B. Sharpe and Robert G. Waltermire and M. Beth Dillon},
  year = {1999},
  url = {https://pubs.usgs.gov/publication/bsr000003},
  note = {Source identifier: bsr000003}
}