Genus PENTHOCERYX

This genus resembles Cacomantis in structure and size, the only structural distinctions being that the bill is much stouter and broader up to the tip, which is blunt when seen from above, and that the tail-feathers become narrower behind instead of remaining of the same breadth. The wing is shaped as in Cacomantis, the primaries only exceeding the secondaries by one-third the length. But the present form is distinguished from all other true Cuckoos by undergoing no change of plumage and by retaining in the adult stage a barred livery that in the other genera is confined to the young. This appears to me a stronger reason for adopting Cabanis's genus than the slight structural distinctions mentioned; but I think that the only species of the present group, if not classed separately, should be referred to Cacomantis rather than to Cuculus.

BookTitle: 
The Fauna Of British India including Ceylon and Burma
Reference: 
Blanford, William Thomas, ed. The Fauna of British India: Including Ceylon and Burma. Vol.3 1895.
Title in Book: 
Genus PENTHOCERYX
Book Author: 
William Thomas Blanford
Year: 
1895
Page No: 
219
M_ID: 
6154
M_SN: 
Cacomantis
Volume: 
Vol. 3
Term name: 
id: 
1556

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