@misc{indiciaef9e36b91f8f4,
  title = {Migrational homing by a pair of mallards},
  author = {T.J. Dwyer and S.R. Derrickson and D.S. Gilmer},
  year = {1973},
  doi = {10.2307/4084181},
  url = {https://pubs.usgs.gov/publication/1007663},
  note = {Source identifier: 1007663}
}