Canada Goose (Branta canadensis)
Canada Geese have a large repertoire of vocalizations. As many as 13 distinct calls have been cataloged.
Canada Goose, pair duetting, February 27, 2011, Vernon Marsh, Waukesha County, WI.
Hissing: Given when fighting or threatening, the breath is exhaled with a hissing sound while the beak is held open and the tongue is elevated and extended (Palmer 1976).
Canada Goose soft grunts and hissing, May 13, 2012. Horicon Marsh, Dodge County, Wisconsin.
Palmer, R. S. 1976. Handbook of North American birds, Vol. 2: waterfowl (part 1). Yale Univ. Press, New Haven, CT.