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Keywords from Image Description:
CerchneisKeulemans. below Cerchneis alopex Heugl Heuglin PetersPeters Banded Kestrel above Fox Kestrel below Catalogue of the birds in the British Museum archive org Vol Plate XIV creator John Gerrard Keulemans Richard Bowdler Sharpe text PDold zoniventris only thumb left alcopex only thumb left Catalogue of the Birds in