Black-headed Munia, Tri-coloured Nun, Pipit Rawa (Malay)
Main features: Small (11cm) with big head; large conical bills bluish grey; plumage chestnut; black head, throat, upper breast, centre of belly, undertail coverts. Genders look alike.
Juvenile: Uniformly buffy brown plumage, no black head.

They specialise in eating grass seeds and have large conical beaks adapted for this purpose. They feed low among tall grass or on the ground. In Singapore, they are mostly seen in rural areas with tall grass. They are also found in cultivated lands, grasslands, scrub, secondary growth.

Gregarious and foraging in flocks, Chestnut Munias are constantly on the move and somewhat nomadic, although they don't migrate. They fly close together in groups, in an undulating flight.