They can be quite noisy, making various loud cheeping, mewing and grating calls. They constantly utter a low cheeping or chirping contact call as they forage. They produce cheeping, twittering or harsh chattering notes while foraging in bushes. Foraging flocks make clipped cheeping contact calls. When disturbed, the whole flock will disperse, cheeping, and re-congregate near-by. The group constantly produces a series of cheeping or churring calls.