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The Dartford warbler (''Sylvia undata'') is a typical warbler from the warmer parts of western Europe and northwestern Africa. Its breeding range lies west of a line from southern England to the heel of Italy (southern Apulia). The Dartford warbler is usually resident all year in its breeding range, but there is some limited migration. ==Taxonomy and systematics== The Dartford warbler was first described by the Welsh naturalist Thomas Pennant from two specimens that were shot in April 1773 on Bexley Heath near Dartford in Kent. The species was assigned the binomial name of ''Motacilla undata'' by the Dutch naturalist Pieter Boddaert in 1783 based on a coloured plate in Edmé-Louis Daubenton's ''Planches enluminées d'histoire naturelle''. The type locality of the Dartford warbler is Provence in France. This species probably forms a superspecies with Tristram's warbler and this in turn seems close to Marmora's warbler and the Balearic warbler. Altogether, this group of typical warblers bears a resemblance to the wrentit, the only species of Sylviidae from the Americas. However the wrentit is less closely related to the genus ''Sylvia'' than to the parrotbills. Its visual similarity to the Dartford warbler group is an example of convergent evolution. Three subspecies are recognised: * ''S. u. dartfordiensis'' Latham, 1787 – south England and north-west France * ''S. u. toni'' Hartert, 1909 – north-west Africa〔 * ''S. u. undata'' (Boddaert, 1783) – Iberian Peninsula and south France〔〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Dartford warbler」の詳細全文を読む スポンサード リンク
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