Somateria Spectabilis

King Eider

Arctic coasts and tundra for breeding; winters in northern coastal waters

The King Eider, somateria spectabilis, is a large, striking sea duck known for its circumpolar distribution in the Arctic regions of North America, Europe, and Asia. Male King Eiders are particularly notable for their distinctive appearance during the breeding season, with a bold black and white pattern, a bright orange bill, and a conspicuous knob at the base of the bill, alongside their blue crown and green cheeks. Females, in contrast, are clothed in more subdued tones of brown and gray, providing excellent camouflage among the Arctic tundra and shoreline where they nest. Adults typically measure between 50 to 70 centimeters in length, with a wingspan of 86 to 102 centimeters, making them one of the larger members of the duck family.

King Eider
Population:Not precisely quantified, but not currently considered endangered
Generation Length:5-6 years
Average Weight:0.9-2.3 kg
Average Length:50-70 cm
Lifespan:Up to 20 years in the wild
Diet:Primarily marine invertebrates
Conservation Status:Least Concern (LC)
Echological Profile

King Eiders prefer cold, coastal waters, spending much of the year in ice-free arctic and subarctic marine environments. They are known for their remarkable diving ability, reaching depths of up to 55 meters to forage on the ocean floor. Their diet primarily consists of a variety of aquatic invertebrates, including mollusks, crustaceans, and sea urchins, which they skillfully extract from the seabed.

During the breeding season, King Eiders migrate to the northernmost coastlines and islands of the Arctic, where females lay their eggs in shallow depressions on the ground, lining them with down plucked from their own breasts. This species exhibits a high degree of fidelity to their breeding sites, often returning to the same location year after year.

The conservation status of the King Eider is currently listed as Least Concern by the IUCN, although certain populations are facing pressures from habitat degradation, oil pollution, and climate change. These threats particularly affect their breeding habitats and food availability, prompting conservationists to monitor their populations closely.

Efforts to conserve the King Eider and its habitat include protecting critical breeding and foraging areas, regulating hunting to ensure sustainable populations, and conducting research to better understand the impacts of environmental changes on their life cycle. The King Eider remains a symbol of the pristine Arctic wilderness, and its presence indicates the health of marine ecosystems in these regions.

A Taxonomy for All Living Things
Classifications
Domain
Eukaryota
Kingdom
Animalia
Phylum
Chordata
Class
Aves
Family
Anatidae
Genus
Somateria
The Key Attributes

Features

  • Movement:

    Flight, swimming, and diving

  • Territorial Behavior:

    Non-territorial; forms large flocks during migration and in wintering areas

  • Speed:

    Capable of rapid flight; specific speeds not documented

  • Diet:

    Carnivore, specializing in marine invertebrates


  • Physical Features:
    • Large sea duck
    • Males with striking plumage including a black body, white breast, and large orange knob on the bill
    • Females are mottled brown
  • Primary Senses:
    • Sight
    • Hearing
Understanding Habitat and Range

Geography

  • Habitat:

    Arctic coasts and tundra for breeding; winters in northern coastal waters

  • Migration Patterns:

    Migratory, breeding in the Arctic and wintering further south along coastlines

  • Geographical Range:

    Circumpolar in the Arctic regions, including Canada, Greenland, Russia, and Northern Europe

  • Climate Preferences:

    Cold, Arctic and subarctic environments

Navigating the Wilderness

In the wild

  • Predators:

    Arctic foxes, large gulls, and humans

  • Prey:

    Crustaceans, mollusks, sea urchins, and small fish

  • Feeding Behavior:

    Dives for crustaceans, mollusks, and small fish

  • Diet:

    Primarily marine invertebrates


  • Defensive Mechanisms:
    • Flight
    • Diving to escape predators
  • Preferred Food Sources:
    • Benthic crustaceans
    • Mollusks
Insights Into Reproduction

Mating

  • Mating System:

    Monogamous

  • Number of Offspring:

    4-7 eggs

  • Incubation Period:

    About 24-25 days


  • Parental Involvement:
    • Both parents initially care for the young, but females primarily undertake rearing
Wild Fun for Young Explorers
Youngsters Section
King Eider
Fun Fact

King Eiders are known for their strikingly colorful plumage and are native to Arctic coastal regions.

These sea ducks have a unique feeding technique, diving to depths of over 50 meters to forage. Their diet mainly consists of mollusks, crustaceans, and aquatic insects. During breeding season, males display vibrant patterns to attract females, showcasing nature's beauty.

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