@misc{indiciaedee07d598b17,
  title = {Are migrating raptors guided by a geomagnetic compass?},
  author = {Kasper Thorup and Mark R. Fuller and T. Alerstam and M. Hake and N. Kjellen and R. Standberg},
  year = {2006},
  url = {https://pubs.usgs.gov/publication/1016435},
  note = {Source identifier: 1016435}
}