Greater Coucal
Centropus sinensis
This is a large species of cuckoo at 48 cm. The head is black, upper mantle and underside are black glossed with purple. The back and wings are chestnut brown. There are no pale shaft streaks on the coverts. The eyes are ruby red. Juveniles are duller black with spots on the crown and there are whitish bars on the underside and tail. There are several geographic races and some of these populations are sometimes treated as full species. Earlier treatments included the brown coucal (C. (s.) andamanensis) under this name.
ID text from Wikipedia, CC BY-SA 4.0
Pheasant Coucal
Centropus phasianinus
50 to 70 cm (20 to 28 in) in length, the pheasant coucal is a large heavy-set bird adapted for living on the ground, reminiscent of a pheasant in shape. Birds in breeding plumage have black heads, necks, breasts and bellies, barred chestnut wings and long black, brown and cream barred tails. Outside the breeding season, their black head and underparts moult to a white-streaked chestnut colour. The pheasant coucal's summer voice is a low descending 'boop boop boop'. Its winter voice is a sharp hissing.
ID text from Wikipedia, CC BY-SA 4.0
Where you might meet both
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