Summary
During the autumn migratory period a juvenile Griffon Vulture was followed by satellite tracking from the breeding grounds in the Pyrenees to the area of Valencia. Satellite tracking was performed on the basis of a Toyocom transmitter connected to the Argos system. The bird could be traced over a two-month period from end of September to end of November 1990. After an initial south-ward movement the bird stayed in an arid lowland close to the Ebro valley for a longer period and later again moved southward to an area near Valencia. Before the transmitter's lifetime ended due to battery insuffiency the bird had turned north into an area where Griffon Vultures are common. The experimental bird may have joined a large group of conspecifics, wintering there. The bird could be traced over a total distance of about 2000 km and the longest stage per day was about 80 km. As in the case of another European pilot study that we have recently carried out on Bewick's Swans, satellite tracking of a Griffon Vulture proved to be a highly promising method to examine in detail migratory movements as well as ecological aspects on route.
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Berthold, P., Griesinger, J., Nowak, E. et al. Satelliten-Telemetrie eines Gänsegeiers (Gyps fulvus) in Spanien. J Ornithol 132, 327–329 (1991). https://doi.org/10.1007/BF01640542
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DOI: https://doi.org/10.1007/BF01640542