The Tundra Swan, with its pristine white plumage and graceful presence, is a true globetrotter, migrating vast distances across the Northern Hemisphere.

Visual Identification

Appearance

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.

Size

Length

120cm to 150cm

Wingspan

168cm to 211cm

Weight

3.7kg to 9.6kg

Colours

Males and females have similar plumage

Primary Colour

White

Beak Colour

Black Yellow

Leg Colour

Black

Habitat and Distribution

Habitats

Woodland

Garden

Wetland

Coastal

Urban

Farmland

Grassland

Desert

Tundra

Rainforest

Mountain

Savanna

Distribution

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.

Elevation Range

Sea level to 2,000 meters

Climate zones

Arctic, Temperate, Subtropical

Distribution Map

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Resident
Breeding
Non-breeding
Passage
Vagrant

Distribution by Region

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Behaviour and Ecology

Bird Attributes

Tap the icon next to each attribute for more information.

Agility 75
Strength 80
Adaptability 85
Aggressiveness 60
Endurance 90

Diet

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.

Behaviour

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.

Vocalisation

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'.

Nesting & Breeding

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.

Lifespan

Typical Lifespan Range 10 - years
Max Recorded Lifespan 24.1 years [1]
0
7
13
20
26

years

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.

Conservation and Status

Global Conservation Status

Least Concern [2]

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.

Population Data

Global Population Estimate

317,000 - 336,000 mature individuals [3]

Global Population Trend

Unknown

Trend data may be uncertain or fluctuating

Birdwatching Tips

  • Look for large, white birds in wetlands and agricultural fields during migration seasons.
  • Listen for their distinctive honking calls, especially in flight.
  • Observe them in coastal areas and large inland water bodies during winter.
  • Use a spotting scope to distinguish the yellow bill patch from a distance.
  • In the UK, focus on wetlands in East Anglia and the Severn Estuary during winter.

Additional Information

Quick Facts

Other names:

Whistling Swan, Bewick's Swan

Family:

Anatidae

Predators

Adult Tundra Swans have few natural predators, but eggs and cygnets are vulnerable to Arctic foxes, gulls, jaegers, and occasionally bears.

Did You Know?

  1. Tundra Swans can fly at speeds up to 50 miles per hour during migration.
  2. They have a special gland that allows them to drink salt water, enabling survival in coastal habitats.
  3. Some individuals have been known to live over 20 years in the wild.

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References

  1. 2

    website: BirdLife International. 2016. Cygnus columbianus. The IUCN Red List of Threatened Species 2016: e.T22679862A89644875.

    View source
  2. 3

    report, 2016: Wetlands International

  3. 1

    website, 2010: Fransson et al., EURING list of longevity records for European birds

    View source