@misc{indiciae70a54807cb19,
  title = {Observations of geese foraging for clam shells during spring on the Yukon-Kuskokwim Delta, Alaska},
  author = {Paul L. Flint and Ada C. Fowler and Grace E. Bottitta and Jason L. Schamber},
  year = {1998},
  url = {https://pubs.usgs.gov/publication/70020863},
  note = {Source identifier: 70020863}
}