Crocopus Bonaparte, Consp. Av., ii, p. 77 (1854).
Type, Columba phoenicoptera Lath.
In this genus the bill is stout and the ramphotheca, or horny terminal half, occupies only about half the length of the bill; the tip is well curved; the wing is long and pointed, the first three primaries acuminate, the third sinuate or deeply scalloped on the inner web near the centre; tail square and never graduated; under tail-coverts reaching to three-quarters the length of the tail; feet with broad fleshy soles, tarsi stout and feathered on the upper half.
There is but one species, which is represented by geographical races extending all over the Indian Empire, Ceylon and Cochin China. This species differs conspicuously from all other Green Pigeons in having yellow and not red legs, and in having the sexes alike.
Key to Subspecies.
A.Breast yellow, abdomen grey.
A.Upper tail-coverts and base of tail both yellowish and not contrasting……………C. p. phoenicopterus, p. 181.
B.Upper tail-coverts grey, contrasting with yellow base of tail........C.p. viridifrons, p. 183.
B.Breast and abdomen both yellow...............C.p. chlorbgaster, p. 184.
This genus seems hardly separable from the African genus Vinago, the type of which, Vinago waalia, has both bill and wing formula exactly like Crocopus. * On the other hand, Vinago as now accepted also includes other birds which are utterly unlike any true Crocopus, especially in their bills.