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MotacillaAlbaKeulemans. upper left Motacilla lugens Kittl Gloger Swinh Swinhoe Swinh Swinhoe Kittl Gloger Swinh Swinhoe Swinh Swinhoe Streakeyed Wagtail upper left right center Blackbacked Wagtail others Catalogue of the birds in the British Museum archive org Vol Plate IV creator John Gerrard Keulemans Philip Lutley Sclater