@misc{indiciae5f7af5a68718,
  title = {Patterns of surface burrow plugging in a colony of black-tailed prairie dogs occupied by black-footed ferrets},
  author = {David E. Eads and Dean E. Biggins},
  year = {2012},
  doi = {10.3398/064.072.0206},
  url = {https://pubs.usgs.gov/publication/70038500},
  note = {Source identifier: 70038500}
}