The White-collared Seedeater mainly forages for grass seeds, in Texas this includes; Echinochloa punctate, Dichanthium annulafusum*, Cenchrus cilaris*, Setaria leucopila, S. scheelei. In addition it has been documented to feed on the floral parts of of Acacia minuata, farnesiana, Salix nigra and S. exigua (* exotic species, Eitniear 1997, Eitniear 2004). The seedeater also consumes insects and can even make short fly-catching sallies (Skutch 1954, Slud 1964). They tend to feed on grass seeds in flocks, sometimes with other seed-eating birds. Other possible food sources are sorghum, rice, spiders and occasionally berries (Stiles and Skutch 1989).