@misc{indiciae7d734a0391e1,
  title = {Consumption of spruce budworms by birds in a Maine spruce-fir forest},
  author = {R.T. Mitchell},
  year = {1952},
  doi = {10.1093/jof/50.5.387},
  url = {https://pubs.usgs.gov/publication/5221330},
  note = {Source identifier: 5221330}
}