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首页> 中文期刊> 《中国鸟类》 >Flight feather moult in Western Marsh Harriers during autumn migration

Flight feather moult in Western Marsh Harriers during autumn migration

         
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摘要

Background: Most of long-distance migratory raptors suspend moult during migration but detailed information is patchy for most of the Palearctic species. The aim of this research is to verify if active moulting in migrating Western Marsh Harriers occurs and to quantify the extent of moulting along the season focusing on primary feathers. Methods: During a whole post-breeding migration at the Strait of Messina in Southern Italy, we gathered informa-tion about symmetrical flight feather moult from 221 adults by taking pictures of raptors passing at close range. Results: We found active moulting primaries during autumn migration in 48.4％ of our samples. Slight differences on the extension and timing among sex classes were recorded during the season, with adult females showing a more advanced moult stage than adult males. Conclusion: The finding that the extension of the suspended moult was already defined in migratory individuals might be explained as an adaptation to minimize the energy required for moulting during migration.

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  • 来源
    《中国鸟类》 |2019年第1期|30-35|共6页
  • 作者

    Juan Ramírez; Michele Panuccio;

  • 作者单位

    MEDRAPTORS (Mediterranean Raptor Migration Network), Via Mario Fioretti 18, 00152 Rome, Italy;

    MEDRAPTORS (Mediterranean Raptor Migration Network), Via Mario Fioretti 18, 00152 Rome, Italy;

    DSTA - Department of Earth and Environmental Sci-ences, University of Pavia, Via Ferrata 9, 27100 Pavia, Italy;

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