@misc{indiciae4621ead26858,
  title = {The northern pintail in North America: the problem and prescription for recovery},
  author = {M. R. Miller and D.C. Duncan and K. Guyn and Paul L. Flint and J. E. Austin},
  year = {2003},
  url = {https://pubs.usgs.gov/publication/93836},
  note = {Source identifier: 93836}
}