French: Cygne siffleur German: Zwergschwan Spanish: Cisne chico
Other common names:
Whistling Swan (columbianus)
The Dalles, Oregon, USA
Subspecies and Distribution
C. c. bewickii#R
Yarrell, 1830 – Bewick's Swan – Kola Peninsula E throughout Arctic N Siberia; winters in W Europe, S of Caspian Sea and E China, Korea and Japan.
C. c. columbianus
(Ord, 1815) – Tundra Swan – tundra of Arctic North America, also extreme NE Siberia; winters in W and coastal E USA and N Mexico.
120–150 cm, male 3800–10,500 g, female 4100–9000 g (nominate); 115–140 cm, male 4536–8391 g, female 4300–7825 g (bewickii);... read more
Nominate is very vocal throughout the year, especially on water and in flight, with calls serving... read more
Breeds on shallow pools, lakes and rivers of moist Arctic tundra. On migration, in North Dakota (... read more
Food and feeding
Mainly leaves, roots, rhizomes and stems of aquatic plants (Potamogeton, Zostera, Glyceria) and grasses,... read more
Starts late May–Jun, e.g. lays 6–17 Jun on Vaygach I, N Russia (bewickii), although columbianus may reach... read more
Migratory; winters in temperate areas; sporadically in more southern latitudes during cold winters... read more
Status and conservation
Not globally threatened (Least Concern). Sizeable populations remain of both races. Winter counts produced 169,300 individuals of nominate columbianus; commonest... read more
Only subscribers are able to see the bibliography. Login or Subscribe to get access to a lot of extra features!