Song: Song is loud, rich and musical, consisting of a series of short notes increasing in emphasis: "chup-chup-chup-chwee-chwee-chuWIP", or an accelerating"fel-ic-ity-has-to-wee-wee". Extremely rare; always confirm identification visually.
Sound: Monty Brigham (Bird Sounds of Canada); 1977 Jun 28; Canada, Ontario; Camp Petawawa; Adult; Primary Sound;