The magnetic field as a reference system for genetically encoded migratory direction in pied flycatchers ficedula hypoleuca
Beck W.; Wiltschko W., 1982: The magnetic field as a reference system for genetically encoded migratory direction in pied flycatchers ficedula hypoleuca. Zeitschrift fuer Tierpsychologie 60(1): 41-46
To see whether the migratory orientation of pied flycatchers (F. hypoleuca Pallas) is genetically encoded with respect to the earth magnetic field, a group of young birds was hand-raised. They were thus prevented from ever experiencing the sky. The birds were tested in autumn 1980 and 1981 in the local geomagnetic field and in 3 artificial fields. Their magnetic compass matures independent of any experience with the sky and contains sufficient information for the birds to orient toward their migratory direction.