@misc{indiciae2384bd103405,
  title = {Sensitive resettable odometer aids roadside census of red-winged blackbirds},
  author = {D.T. Harke and A.R. Stickley},
  year = {1968},
  doi = {10.2307/3798950},
  url = {https://pubs.usgs.gov/publication/5220630},
  note = {Source identifier: 5220630}
}