The main vocalization of Red-necked Woodpecker, emitted by both sexes, is an explosive nasal call ("ngkah-ngkah" or "kikka") that is given repeatedly (ML11467 and XC38651) (Winkler et al. 1995:347). It is similar to loud calls of Crimson-crested Woodpecker and Magellanic Woodpecker (Campephilus magellanicus) (Winkler et al. 1995, Short 1970:122). In addition, "churring" calls ("ca-wa-rr-r" ) may be emitted when birds are agitated (ML30549, ML126842 and XC75343). Juveniles give excited begging cries in quick succession ("uhr-ah") when parents arrive at the nest cavity to feed them (XC2831). A squeaky sounding, begging call of a juvenile female during foraging can be heard at ML126868.