@misc{indiciae61c630d27c54,
  title = {Selective feeding by juvenile diving ducks in summer},
  author = {James C. Bartonek and J.J. Hickey},
  year = {1969},
  doi = {10.2307/4083407},
  url = {https://pubs.usgs.gov/publication/1001808},
  note = {Source identifier: 1001808}
}