LE VAILLANT’S CUCKOO. 
133 
Size less than that of the common Cuckoo, but 
the tail is much longer. Upper plumage dark 
blackish, glossed with different tints of green, ex- 
cept on the primaries, which are brownish-black ; 
6ix of these feathers hare a white bar at their base, 
which forms a patch, and there is a large spot of 
white at the end of each tail-feather ; the chin, 
throat, and breast are white, thiokly striped with 
black; the rest of the under plumage is dirty- 
white ; the tail is long, broad, and graduated, and 
the fourth and fifth quills are the longest ; bill and 
feet blackish. 
Total length, 16 inches ; bill, from the gape, 1 ; 
wings, 7 ; tail beyond, 7 ; ditto, from the base, 10; 
tarsus, 1. 
YELLOW-BILLED COUCAL. 
Zandostomus flavirostris, Swains. 
PLATE XIX. 
Body above, wings, and tad glossy violet purple ; head, neck, 
and body beneath cinereous ; tail beneath with lilac re- 
flections ; bill yellow, with a blackish spot in front. 
The Coucals, although closely allied to the cuckoos, 
differ from them in some very material points, both 
of structure and economy. They do not, like the 
