@misc{indiciae1c318567fcd5,
  title = {Feeding ecology of northern pintails and green-winged teal wintering in California},
  author = {Ned H. Euliss and Stanley W. Harris},
  year = {1987},
  doi = {10.2307/3801733},
  url = {https://pubs.usgs.gov/publication/1001450},
  note = {Source identifier: 1001450}
}