@misc{indiciae5272b3923422,
  title = {The relationship between parental age and reproductive effort in the California Gull (Larus californicus)},
  author = {Bruce H. Pugesek},
  year = {1983},
  doi = {10.1007/bf00299919},
  url = {https://pubs.usgs.gov/publication/1008657},
  note = {Source identifier: 1008657}
}