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Résumé :
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A White Wagtail Motacilla alba of the race M. a. leucopsis, often referred to as 'Amur Wagtail', was discovered at Seaham, Durham, on 5th April 2005. This is the first time that this distinctive taxon, which breeds in eastern China and winters in southeast Asia, has occurred in Britain or the Western Palearctic. Circumstances leading to the discovery and subsequent identification are described. Systematics and relationships within the White Wagtail complex and vagrancy to Europe by eastern races of White Wagtail are discussed briefly.
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