The rippling "preep" and whistled "sweeeooo" calls of the Alpine chough are quite different from the more typically crow-like "chee-ow" vocalisations of the jackdaw and the red-billed chough. It also has a rolling "churr" alarm call, and a variety of quiet warbles and squeaks given by resting or feeding birds. In a study of chough calls throughout the Palearctic region it was found that call frequencies in the Alpine chough showed an inverse relationship between body size and frequency, being higher-pitched in smaller-bodied populations.