Song: The call is a raucous, rasping "arrr-arrr-ehhh" ("go-to-hell"). The begging call of fledged young is an "eee-eeep" ("feed-me!").
Sound: Monty Brigham (Bird Sounds of Canada); 1993 Aug 23; Canada, Ontario; Presqu'ile Provincial Park - Owen's Point; Adult; Primary Sound;