Whooper Swan - Neck Length: Approx. 3 ft. (0.91 m)
The Whooper Swan (Cygnus cygnus), also known as the common swan, pronounced hooper swan, is a large northern hemisphere swan. It is the Eurasian counterpart of the North American trumpeter swan and the type species for the genus Cygnus.
The whooper swan, one of the largest living swan species, can reach heights of up to 4 feet (1.2 meters). The distance between the tip of the bill and the end of the tail can reach 5 feet or 1.5 meters. Swans often have necks that reach a maximum length of 3 feet, or 0.91 meters, compared to geese. They consume the leaves, roots, stems, and tubers of aquatic and submerged plants; they are essentially fully herbivorous. Both on land and in the water, they can forage thanks to their long, flexible necks. A short-necked swan wouldn't be able to detect predators and would struggle to find food underwater.