Cacomantis variolosus Vigors & Horsfield, 1827

The Brush Cuckoo male is grey-brown above, light grey to buff below, with a grey head, neck and breast. The tail has a white tip and is barred white underneath. The female has two colour morphs (forms): unbarred and barred. The unbarred morph is similar to the male but is much paler buff underneath, with faint grey barring across the chest. The barred morph is less common, and has streaked/barred upper parts and the underbody is darkly barred. Juvenile Brush Cuckoos are heavily barred dark brown above and mottled and barred underneath. Female finelly barred grey below. Juvenile has head, back and wings barred buff and dark brown., tail dark brown barred rufous and (rarely) white, black-barre white below, iris whitish grey or pale light brown