Cygnus columbianus
Tundra Swan
The Tundra Swan is a striking bird with pure white plumage, a long graceful neck, and a black bill often marked with a small yellow patch at the base. Adults typically measure 120-150 cm in length, with a wingspan of 168-211 cm.
Juveniles display grayish-brown feathers, gradually molting to white over their first year. The species shows no significant sexual dimorphism, with males and females appearing nearly identical, though males are usually slightly larger.
Length
120cm to 150cm
Wingspan
168cm to 211cm
Weight
3.7kg to 9.6kg
Males and females have similar plumage
Primary Colour
White
Beak Colour
Black Yellow
Leg Colour
Black
Woodland
Garden
Wetland
Coastal
Urban
Farmland
Grassland
Desert
Tundra
Rainforest
Mountain
Savanna
Tundra Swans breed in the Arctic tundra of North America and Eurasia, favoring shallow wetlands and coastal areas. During migration and winter, they inhabit a variety of wetland habitats, including estuaries, lakes, and flooded fields.
In North America, they winter along both coasts, from Alaska to California in the west and from Maryland to North Carolina in the east.
In Europe, Bewick's Swans (the Eurasian subspecies) winter in the UK, Netherlands, and other parts of Western Europe.
Sea level to 2,000 meters
Arctic, Temperate, Subtropical
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Tundra Swans are primarily herbivorous, feeding on aquatic plants, grasses, and sedges.
They use their long necks to forage underwater and have adapted to grazing in agricultural fields, consuming leftover grains and crops during migration and winter.
Tundra Swans are highly social and often seen in large flocks during migration and winter. They exhibit strong pair bonds, engaging in synchronized swimming and vocalizing.
These birds are excellent swimmers and can run on water to gain flight, a spectacular sight during takeoffs from lakes or ponds.
Tundra Swans are known for their melodious, bugling calls, often described as 'wow-wow-wow' or 'hoop-hoop'. These vocalizations play a crucial role in pair bonding and flock communication.
During flight, their wing beats produce a distinctive whistling sound, earning them the name 'Whistling Swan'.
Tundra Swans form monogamous pairs that often last for life. Breeding occurs during the brief Arctic summer, typically from late May to July. Pairs vigorously defend large territories in the tundra.
Nests are large mounds of vegetation built on slightly elevated ground near water. Females lay 3-5 large, creamy-white eggs, which both parents help to protect.
Incubation lasts about 32 days, with cygnets fledging after 60-75 days. The family group remains together through the first winter and migration, separating the following spring.
The Tundra Swan typically lives for 10 years, with a maximum recorded lifespan of 24.1 years.
Like all birds, lifespan can be affected by factors including predation, habitat quality, disease, and access to food sources.
While currently listed as Least Concern, Tundra Swans face threats from habitat loss, particularly in their breeding grounds due to climate change.
Conservation efforts focus on protecting key wetland habitats along migration routes and wintering areas, as well as monitoring population trends.
Global Population Estimate
317,000 - 336,000 mature individuals [3]
Global Population Trend
Trend data may be uncertain or fluctuating
Whistling Swan, Bewick's Swan
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website: BirdLife International. 2016. Cygnus columbianus. The IUCN Red List of Threatened Species 2016: e.T22679862A89644875.
View sourcereport, 2016: Wetlands International
website, 2010: Fransson et al., EURING list of longevity records for European birds
View source