Wintering areas of Great Skuas Stercorarius skua breeding in Scotland, Iceland and Norway
Wintering areas of Great Skuas Stercorarius skua breeding in Scotland, Iceland and Norway
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大贼鸥的越冬区 Stercolarius 贼鸥在苏格兰、冰岛和挪威繁殖
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发表时间：
2012
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通讯作者：
R. Furness
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作者：
Ellen Magnúsdóttir;Eliza H. K. Leat;Sophie Bourgeon;H. Strøm;A. Petersen;R. Phillips;S. Hanssen;J. O. Bustnes;P. Hersteinsson;R. Furness
囊大贼鸥Stercorarius skua繁殖在苏格兰，冰岛和挪威，冬季在不同地区。目的评估不同国家大贼鸥成年繁殖种群的冬季分布。方法2008年，在设得兰群岛（苏格兰）、冰岛东南部和比约恩亚（挪威）的殖民地，部署地理定位数据记录器对繁殖成虫进行记录。当鸟类在第二年返回繁殖时，记录器被恢复，并对下载的数据进行处理，以指示每个个体在整个冬季的位置。结果成年贼鸥在非洲西北部和欧洲南部越冬。来自冰岛的成虫大多在加拿大过冬，少数前往非洲西北部和欧洲。虽然比约恩岛（挪威）的成年鸟迁徙到与冰岛的鸟类相似的地区，但在欧洲过冬的比例略高，大多数比苏格兰的鸟类更北。虽然有三只鸟在连续几年的冬季都使用同一个小区域，但有四只鸟在一个冬季内在不同的区域之间移动。结论大贼鸥的迁徙在不同繁殖区有明显的差异，并存在一定的个体一致性。
Capsule Great Skuas Stercorarius skua breeding in Scotland, Iceland, and Norway, winter in different areas. Aims To assess the winter distribution of adult Great Skuas breeding in different countries. Methods Geolocation data-loggers were deployed on breeding adults at colonies in Shetland (Scotland), southeast Iceland, and Bjørnøya (Norway) in 2008. Loggers were recovered when birds returned to breed the next year and downloaded data were processed to indicate the location of each individual throughout the winter period. Results Adult Great Skuas from Scotland wintered off northwest Africa and southern Europe. Adults from Iceland mostly wintered off Canada, with small numbers visiting northwest Africa and Europe. Although adults from Bjørnøya (Norway) migrated to similar areas to birds from Iceland, a slightly greater proportion wintered off Europe, and most used areas further north than birds from Scotland. Although three birds studied over consecutive winters used the same small area in consecutive years, four moved between different areas within one winter. Conclusion Great Skuas show clear variation in migrations among breeding regions, and some evidence of individual consistency.