/ 



THE IBIS, 



QUARTERLY JOURNAL OF ORNITHOLOGY. 



EDITED BY 



PHILIP LUTLEY SCLATER, M.A., Ph.D., F.R.S., 



SECRETARY TO THE ZOOLOGICAL SOCIETY OP LONDON. 



VOL. IV. 1892. 

 SIXTH SERIES. 



Oognovi omnia volatilia coeli. 



LONDON: 



GUENEY AND JACKSON, 1 PATERNOSTER ROW 



(Successors to J. VAN VOORST.) 



1892. 



