@misc{indiciae2986204393e0,
  title = {Seasonal distribution of bird populations at the Patuxent Research Refuge},
  author = {D. J. Hoffman and Charles J. Henny and E. F. Hill and J.A. Keith and R. A. Grove},
  year = {2000},
  url = {https://pubs.usgs.gov/publication/5224165},
  note = {Source identifier: 5224165}
}