Song: Most calls are based on a sharp high-pitched yelping "kek" or "plik" call. Calls range from short single barks to continuous whining yelps "kikikkikki" or "kee-ack kee-ack kee-ack". Calls are generally lower and louder than American Avocet.
Sound: Lang Elliott; 1989 Apr 21; USA, Louisiana; Adult; Primary Sound;