@misc{indiciaef91ecc2b2062,
  title = {The fundus oculi of birds, especially as viewed by the ophthalmoscope a study in comparative anatomy and physiology — Illustration, BHL page 41409310},
  year = {1917},
  url = {https://www.biodiversitylibrary.org/page/41409310},
  note = {Source identifier: page-41409310}
}