This species' call is a "cooOOoo-woo-woo-woooo", which is used by males when attracting a mate. Other sounds include a nest call ("cooOOoo") by paired males to attract their mates to the nests, a greeting call (a soft "ork") by males upon joining their mates again, and an alarm call (a short "roo-oo") by either male or female when in danger.