Radde’s warbler – Phylloscopus schwarzi

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Radde’s warbler (Phylloscopus schwarzi) is a leaf warbler which breeds in Siberia. This warbler is strongly migratory and winters in Southeast Asia. The genus name Phylloscopus is from Ancient Greek phullon, “leaf”, and skopos, “seeker” (from skopeo, “to watch”). The specific schwarzi commemorates German astronomer Ludwig Schwarz (1822–1894).

This is a warbler similar in size to a willow warbler. The adult has an unstreaked brown back and buff underparts. There is a very long prominent whitish supercilium, and the pointed bill is thicker than that of the similar dusky warbler. The legs are paler than dusky’s, and the feet look large, reflecting the more terrestrial lifestyle of this warbler. The sexes are identical, as with most warblers, but young birds are yellower below. The call is a soft chick.

The first observation for Romania was in 2023, in Chituc ringing camp, near the Black Sea.

photo : Mihai Baciu


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