@misc{indiciae0309cca21c1d,
  title = {Protecting duck nests from mammalian predators with fences, traps, and a toxicant},
  author = {R. J. Greenwood and P.M. Arnold and B.G. McGuire},
  year = {1990},
  url = {https://pubs.usgs.gov/publication/1001485},
  note = {Source identifier: 1001485}
}