@misc{indiciaec4d93cd3eb07,
  title = {Ecological relationships of breeding blue-winged teal to prairie potholes},
  author = {Rod C. Drewien and P. F. Springer},
  year = {1969},
  url = {https://pubs.usgs.gov/publication/2000122},
  note = {Source identifier: 2000122}
}