@misc{indiciae380d922bb7ce,
  title = {A walk-in trap for nesting ducks},
  author = {N.J. Dietz and P.J. Bergmann and Lester D. Flake},
  year = {1994},
  url = {https://pubs.usgs.gov/publication/1001127},
  note = {Source identifier: 1001127}
}