 It occurs in dense undergrowth in freshwater swamps, marshes, besides tidal creeks and rice paddies, and in bushy habitats near rivers and streams.The crimson seedcracker has a broad, strong bill and feeds on grass, sedge and rice seeds, especially seeds that are hard to break open.It forages through the undergrowth, but can sometimes be observed feeding on the ground in the open in the vicinity of scrub, in pairs or in the company of bluebills or other small birds.