@misc{indiciae6ae835586f98,
  title = {Nesting and migration areas of birds of the U.S. Great Lakes},
  author = {William C. Scharf and M.L. Chamberlain and T.C. Erdman and G.W. Shugart},
  year = {1979},
  url = {https://pubs.usgs.gov/publication/fwsobs77\_02},
  note = {Source identifier: fwsobs77\_02}
}