@misc{indiciae31c0f7c31940,
  title = {A conceptual framework for clutch size evolution in songbirds},
  author = {Thomas E. Martin},
  year = {2014},
  doi = {10.1086/674966},
  url = {https://pubs.usgs.gov/publication/70047862},
  note = {Source identifier: 70047862}
}