@misc{indiciaef19ad37f8b8c,
  title = {Thickness of the American woodcock eggshell, 1971},
  author = {J.F. Kreitzer},
  year = {1973},
  doi = {10.1007/bf01684784},
  url = {https://pubs.usgs.gov/publication/5221235},
  note = {Source identifier: 5221235}
}