@misc{indiciae7fa421e386ba,
  title = {Determinants of mallard and gadwall nesting on constructed islands in North Dakota},
  author = {Terry L. Shaffer and Ann L. Dahl and Ronald E. Reynolds and Kathy L. Baer and Michael A. Johnson and Glen A. Sargeant},
  year = {2006},
  doi = {10.2193/0022-541x(2006)70[129:domagn]2.0.co;2},
  url = {https://pubs.usgs.gov/publication/1016619},
  note = {Source identifier: 1016619}
}