@misc{indiciaee2c98f3b812b,
  title = {Upland nesting of American bitterns, marsh hawks, and short-eared owls},
  author = {Harold F. Duebbert and J. T. Lokemoen},
  year = {1977},
  url = {https://pubs.usgs.gov/publication/1001483},
  note = {Source identifier: 1001483}
}