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A book of birds Plate XXIV . Plate XXIV Fig White throai Sylvia ciuerea Fig Blackcap Sylvui atricapilla Plate XXIV Illustration biodiversitylibrary org title Pycraft NameFound Sylvia ciuerea NameConfirmed Sylvia ciuerea NameFound Sylvui atricapilla Biodiversity Heritage Library book of birds Birds Smithsonian Institution