THE I B I S, 



A 



QDAETERLY JOURNAL OF ORNITHOLOGY. 



EDITED BY 



WILLIAM LUTLEY SCLATER, M.A., F.Z.S. 



VOL. V. 1917. 

 TENTH SERIES. 



Delectasti rue, Domine, in operibus maniuim tuaruni. 



PTIBLISITED BY THE 

 BRITISH ORNITHOLOGISTS' UNION 



AND SOLD BY 



WILLIAM WESLEY & SON, 28 ESSEX STREET, STRAND, 

 LONDON, W.C.3. 



1917. 



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