^|» ELEVENTH SERIES. 



Vol. 1L. No. -6. J^^^' 1920. 



Frice 106". «e^. 



THE IBIS, 



QUARTERLY JOURNAL OF ORNITHOLOGY. 



<;?^*'''»"'"**'-^-- 



EDITED Br 



^ JUL2 11920 

 WILLIAM LUTLEY SCLATEK^%:i^,L^t«>' 



PUBLISHED BY THE 

 BRITISH ORNITHOLOGISTS' UNION 



AND SOLD BY 



WILLIAM WESLEY & SON, 28 ESSEX STREET, STRAND, 

 LONDON, W.C. 2. 



ITAYLOB AND FEANCIB, PRINITERS,] 



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