Strimas-Mackey M, Miller E, Hochachka W (2018). auk: eBird Data Extraction and Processing with AWK. R package version 0.3.0, https://cornelllabofornithology.github.io/auk/.

@Manual{,
  title = {auk: eBird Data Extraction and Processing with AWK},
  author = {Matthew Strimas-Mackey and Eliot Miller and Wesley Hochachka},
  year = {2018},
  note = {R package version 0.3.0},
  url = {https://cornelllabofornithology.github.io/auk/},
}