@misc{indiciaeef492caf6d3e,
  title = {Diurnal flight time of wintering Canada geese: consideration of refuges and flight energetics},
  author = {J. E. Austin and D.D. Humburg},
  year = {1992},
  url = {https://pubs.usgs.gov/publication/1001361},
  note = {Source identifier: 1001361}
}