. 1. Anthoscopus sylviella Rchw. 2. Sylvietta leucopsis (Rchw.) 3. Sylvietta erlangeri Rchw. 4. Sylvietta flecki (Rchw.) Bruno Geister, /ec. Druck V, Rau b' Sohn, Dresdtn.

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Keywords: ., bookcentury1900, bookdecade1900, booksubjectbirds, bookyear1900