@misc{indiciaec975332d31da,
  title = {Annual adult survival rates of blackbirds and starlings},
  author = {Don P. Fankhauser},
  year = {1971},
  doi = {10.2307/4511715},
  url = {https://pubs.usgs.gov/publication/5220664},
  note = {Source identifier: 5220664}
}