@misc{indiciae897cd7e56e82,
  title = {Aging tricolored blackbirds by cranial ossification},
  author = {R. W. DeHaven and F.T. Crase and M. R. Miller},
  year = {1974},
  doi = {10.2307/4512024},
  url = {https://pubs.usgs.gov/publication/1007688},
  note = {Source identifier: 1007688}
}