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Zur Fortpflanzungsgeschichte der gesammten Vgel Plate LXXXV . ' 'r ' ' Ayfn ' y'' ' ' ' jyi Xy Plate LXXXV Illustration biodiversitylibrary org title Thienemann Friedrich August Ludwig Biodiversity Heritage Library Eggs Zur Fortpflanzungsgeschichte der gesammten Vgel TWITTER POSTS Birds Pictorial works Reproduction