Ficedula hypoleuca (Pallas 1764)

British ornithology :. Norwich :Bacon,1815-22.. biodiversitylibrary.org/page/48424553

British ornithology London :Printed for the author, by Stephen Couchman ... and sold by Sherwood, Neely, and Jones,1811-1821. biodiversitylibrary.org/page/45633911

Coloured illustrations of British birds, and their eggs /. London :G.W. Nickisson,1842-1850.. biodiversitylibrary.org/page/40246319

The smaller British birds :. London :Gibbins,1894.. biodiversitylibrary.org/page/7849353

Familiar wild birds /. London ; New York :Cassell,1883.. biodiversitylibrary.org/page/23905826

British birds & their eggs :. London :W. & R. Chambers,1909.. biodiversitylibrary.org/page/14409191

British birds in their haunts .... London,Dutton[1922]. biodiversitylibrary.org/page/13519282

Naturgeschichte der Vögel Mitteleuropas Gera-Untermhaus,F.E. Köhler,1897-1905 [v.1, 1905] biodiversitylibrary.org/page/34557199