Whooper swans are very „talkative“ with a typical, deep, trumpet-like call. In addi- tion, there are greeting calls, triumph calls as well as a number of different calls given during resting, flying or when disturbed. The calls of different individuals are dis- tinctive and can be differentiated.
Whooper Swans are monogamous and pair for life. The female whooper swans is res- ponsible for incubating, while the male guards his female and the nest.
Size: Head-tail length 145cm-150cm, wing length 59-61cm, wing span 200cm
Breeding duration: 35 days
Age: 20 years
Sexually mature: with 4 years
Reproduction: 4-5 eggs
food: Aquatic plants, grasses, roots
habitat: Shallow water lakes with rich vegetation
Danger: not endangered
distribution: subarctic Eurasia (from Iceland, Scandinavia to Siberia). Meanwhile also brood populations south of the ancestral distribution area