@misc{indiciaef6bc89c99503,
  title = {Importance of individual species of predators on nesting success of ducks in the Canadian prairie pothole region},
  author = {Douglas H. Johnson and Alan B. Sargeant and Raymond J. Greenwood},
  year = {1989},
  doi = {10.1139/z89-043},
  url = {https://pubs.usgs.gov/publication/1001544},
  note = {Source identifier: 1001544}
}