Re-orientation in clock-shifted homing pigeons subjected to a magnetic disturbance: a study with GPS data loggers

Some authors have proposed that homing
pigeons are able to correct the error in orientation following a phase-shift treatment by using the magnetic compass
reference. They reported that clock-shifted pigeons bearing magnets display a greater deflection compared to magnetically
unmanipulated clock-shifted birds. However, this hypothesis tested by recording pigeons’ vanishing bearings has led to contradictory results. The present study reports pigeons’ tracks recorded with a GPS and shows that clockshifted pigeons bearing magnets displayed a greater deviation through the whole route compared to the magnetically unmanipulated shifted pigeons. Moreover,
the analysis of the tracks shows that the birds belonging to both experimental groups stop in coincidence with their subjective night. When re-starting their journey, the birds corrected the clock-shift induced error in orientation, but the magnetically manipulated pigeons were less efficient in doing so. Our results are consistent with the hypothesis that homing pigeons released from unfamiliar location re-orient after clock shift by using the magnetic compass.

Batschelet E (1981) Circular statistics in biology. Academic,
London
Bingman VP, Ioalè P (1989) Initial orientation of anosmic homing
pigeons based on information gathered at familiar release sites
remains homeward directed following clock-shift. Behaviour
110:1–4
Binkley S, Mosher K (1989) Advancing schedules and constant light
produce faster resynchronization of circadian rhythms. Chronobiol
Int 6:305–311
Biro D, Freeman R, Meade J, Roberts S, Guilford T (2007) Pigeons
combine compass and landmarks guidance in familiar route
navigation. Proc Natl Acad Sci U S A 104:7471–7476
Bonadonna F, Holland R, Dall’Antonia L, Guilford T, Benvenuti S
(2000) Tracking clock-shifted homing pigeons from familiar
release sites. J Exp Biol 203:207–212
Foà A, Albonetti E (1980) Does familiarity with the release site
influence the initial orientation of homing pigeons? Experiments
with clock-shifted birds. Z Tierpsychol 54:327–338
Füller E, Kowalski U, Wiltschko R (1983) Orientation of homing
pigeons: compass orientation vs piloting by familiar landmarks. J
Comp Physiol 153:55–58
Gagliardo A, Ioalè P, Bingman VP (1999) Homing in pigeons: the role
of the hippocampal formation in the representation of landmarks
used for navigation. J Neurosci 19:311–315
Gagliardo A, Odetti F, Ioalè P, Bingman VP, Tuttle S, Vallortigara G
(2002) Bilateral participation of the hippocampus in familiar
landmark navigation by homing pigeons. Behav Brain Res
136:201–209
Gagliardo A, Odetti F, Ioalè P (2005) Factors reducing the expected
deflection in initial orientation in clock-shifted homing pigeons. J
Exp Biol 208:469–478
Holland R, Bonadonna F, Dall’Antonia L, Benvenuti S, Burt DP,
Guilford T (2000) Short distance phase shifts revisited: tracking
clock-shifted homing pigeons (Rock Dove Columba livia) close
to the loft. Ibis 142:111–118
Ioalè P (1984) Magnets and pigeon orientation. Monit Zool Ital (N S)
18:347–358
Ioalè P (1995) Preferred compass directions of homing pigeons in
Italy. Boll Zool 62:13–21
Ioalè P, Odetti F, Gagliardo A (2006) Do bearing magnets affect the
extent of deflection in clock-shifted homing pigeons? Behav Ecol
Sociobiol 60:516–521
Kramer G (1953) Die Sonnenorientierung der Vögel. Verh Dtsch Ges
Zool 1952:77–88
Lipp H-P, Vyssotski AL, Wolfer DP, Renaudineau S, Savini M, Tröster
G, Dell’Omo G (2004) Pigeon homing along highways and exits.
Curr Biol 14:1239–1249
Luschi P, Dall’Antonia P (1993) Anosmic pigeons orient from familiar
sites by relying on the map-and-compass mechanism. Anim
Behav 46:1195–1203
Neuss M, Wallraff HG (1988) Orientation of displaced homing
pigeons with shifted circadian clocks: prediction vs observation.
Naturwissenschaften 75:363–365
Papi F, Ioalè P, Dall’Antonia P, Benvenuti S (1991) Homing strategies
of pigeons investigated by clock shift and flight path reconstruction.
Naturwissenschaften 78:370–373
Pardi L, Ugolini A, Faqi AS, Scapini F, Ercolini A (1988) Zonal
recovering in equatorial sandhoppers: interaction between magnetic
and solar orientation. In: Chelazzi G, Vannini M (eds)
Behavioral adaptation to itertidal life. Plenum Publishing
Corporation, London, pp 79–92
Ranvaud RD, Gasparotto OC, Britto LRG (1996) Backup compass
mechanisms in pigeon orientation with the sun in the zenith.
Brazilian J Med Biol Res 29:1341–1347
Schiffner I, Wiltschko R (2009) Point of decision: when do pigeons
decide to head home? Naturwissenschaften 96:251–258
Schmidt-Koenig K (1958) Experimentelle Einflußnahme auf die 24-
Stundenperiodik bei Brieftauben und deren Auswirkungen unter
besonderer Berücksichtigung des Heimfindevermögens. Z Tierpsychol
15:301–331
Schmidt-Koenig K (1961) Die Sonne als Kompaß im Heim-
Orientierungssystem der Brieftauben. Z Tierpsychol 18:221–244
Steiner I, Bürgi C, Werffeli S, Dell’Omo G, Valenti P, Tröster G, Wolfer
DP, Lipp H-P (2000) A GPS logger and software for analysis of
homing in pigeons and small mammals. Physiol Behav 71:589–596
Wallraff HG (1978) The preferred compass direction in initial
orientation of homing pigeons. In: Schmidt-Koenig K, Keeton
WT (eds) Animal migration, navigation and homing. Springer,
Berlin, pp 171–183
Wallraff HG, Foà A (1982) The role of olfaction and magnetism in
pigeons homing. Naturwissenschaften 69:504
Wiltschko R, Wiltschko W (2001) Clock-shift experiments with
homing pigeons: a compromise between solar and magnetic
information? Behav Ecol Sociobiol 49:393–400
Wiltschko R, Kumpfmuller R, Muth R, Wiltschko W (1994) Pigeon
homing: the effect of a clock-shift is often smaller than predicted.
Behav Ecol Sociobiol 35:63–73
Wiltschko R, Siegmund B, Stapput K (2005) Navigational strategies
of homing pigeons at familiar sites: do landmarks reduce the
deflections induced by clock-shifting? Behav Ecol Sociobiol
59:303–312