Study
Familiar route loyalty implies visual pilotage in the homing pigeon
Biro, Dora; Meade, Jessica; Guilford, Tim
Proceedings of the National Academy of Sciences, 2004
Pigeons carrying GPS loggers were released repeatedly from the same sites, and the similarity of successive tracks measured; some birds were then clock-shifted to disrupt sun-compass use.
- Studied in
- Columba livia
- Sample size
- pigeons released repeatedly from fixed sites carrying GPS loggers
Individual birds converged on idiosyncratic, highly repeatable routes that were not the straight line home, and clock-shifted birds followed their established routes rather than departing at the deflected bearing.
What it means
The authors' reading, and ours. Where they differ, that difference is the point.
How the authors put it
With experience, pigeons switch from compass-based orientation to following a learned visual route over familiar terrain.
How NatureHQ reads it
The result that reframes homing as something that changes with experience rather than one mechanism running every time. The clock-shift control is what makes it: a bird still using a sun compass would have set off wrong, and these birds did not — they followed the road they knew.
- Domestic homing pigeons over familiar English countryside; route loyalty in unfamiliar terrain is a different question.
- GPS logging fixes position, not what the bird was attending to; "visual pilotage" is an inference from the route shape.
Releasing the same pigeon from the same field, twenty times
Does a pigeon that knows the way home fly the same way each time — and if so, why that way?
What this study is used for on NatureHQ
One study can inform several subjects. Here is everywhere this one is cited.
Homing pigeons
Take away a pigeon’s sense of smell and it still homes from places it knows. Release it somewhere unfamiliar and it cannot choose a direction — which places smell in the map, not in the compass.
Homing pigeons
Released from the same place again and again, a pigeon stops flying the straight line and starts flying its own route — the same wiggles every time, and not the same as the bird in the next loft.
Published by: Proceedings of the National Academy of SciencesPublished in PNAS.
doi.org/10.1073/pnas.0406984101
Checked against Crossref on 2026-09-28, and they agree on the title, the authors and the year.
NatureHQ summarises research in its own words and does not reproduce published text. Reviewed 2026-09-03.