@misc{indiciae83c22a17ea97,
  title = {Water level management and contaminant exposure to tree swallows nesting on the Upper Mississippi River},
  author = {T. W. Custer and P.M. Dummer and Christine M. Custer and A.U. Li and D. Warburton and M. J. Melancon and D. J. Hoffman and C. W. Matson and J. W. Bickham},
  year = {2007},
  url = {https://pubs.usgs.gov/publication/5224743},
  note = {Source identifier: 5224743}
}