THE IBIS, 
A 
QUARTERLY JOURNAL OF ORNITHOLOGY. 
EDITED BY 
OSBERT SALVIN, M.A., F.R.S., 
AND 
PHILIP LUTLEY SCLATER, M.A., Ph.D., F.R.S., 
SECRETARY TO THE ZOOLOGICAL SOCIETY OF LONDON, 
VOL. IV. 1880. 
FOURTH SERIES. 
This avis robusta et multos vivit In annos. 
LONDON: 
JOHN VAN VOORST, 1 PATERNOSTER ROW. 
“1880. 
