Cacomantis passerinus, Vahl.
208. :- Polyphasia nigra, apud Blyth. :- Jerdon's Birds of India, Vol. I, p. 333; Butler, Guzerat; Stray Feathers, Vol. III, p. 461; Deccan, Stray Feathers, Vol. IX, p. 388.
THE INDIAN PLAINTIVE CUCKOO.
Length, 9 ; expanse, 14; wing, 4.5 ; tail, 4.5 ; tarsus, 0.6 ; bill at front, 0.6.
Bill blackish, red at base and gape; irides rusty-red ; feet reddish-yellow.
Adult, uniform dark-ashy above, with more or less of a green gloss; beneath pale ashy; vent and under tail-coverts pure white; quills dusky, with a broad white band on the inner web of each feather; tail blackish ; the inner webs banded with white (except the middle pair), and all tipped white.
A common phase of this species in South India is dusky-cinereous, almost blackish above, with a greenish gloss beneath the same, but less glossed ; tail as in the last, but darker and with fewer white spots.
The younger state of this phase is glossy dark-cinereous only on the back and wings, the head and rump being ashy; chin and throat cinereous; breast darker cinereous, banded with rufous and white ; belly pale cinereous, faintly marked with pale rufous" and white; under tail-coverts white; tail as in the last.
In some states of plumage all the upper parts are bright rufous, with dusky bars; the primaries dusky brown with rufous edges; the tail rufous, all the outer feathers- having dark bars and a broader subterminal one, with a. white, spot at the tip"; throat, neck and breast, pale rufous, with dusky bars; and the belly, flanks, and tail-coverts white, also with dusky cross bars tibial feathers rufous barred.
In a more advanced state of the same plumage the bars on the head and rump disappear, and those that remain have a green gloss upon them.
Not uncommon during the rains in many parts of the Deccan, and at Mount Aboo ; it probably also occurs at and near Mhow ; it has never been recorded from Sind, Cutch, Kattiawar, or Jodhpore.