@misc{indiciae06d123f5fa83,
  title = {Profitable poultry. : [Supplementary material in Charles Darwin's copy] / Profitable poultry — Illustration, Pl. 4},
  year = {1854},
  url = {https://www.biodiversitylibrary.org/page/33902274},
  note = {Source identifier: page-33902274}
}