Night sky orientation of migratory pied flycatchers raised in different magnetic fields

作者: Verner P. Bingman

DOI: 10.1007/BF00310220

关键词:

摘要: To test whether the initial night sky orientation response of migratory pied flycatchers (Ficedula hypoleuca) is calibrated from ambient magnetic field experienced by birds during their first summer, three groups were hand-reared and then held under different conditions course summer. All outdoors given full exposure to day sky. One group was exposed local earth's field. A second a earth strength, inclination shifted 105° counter-clockwise relative The last vertical, thus nondirectional

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