Xema Sabini

Sabine's Gull

Arctic and subarctic regions for breeding; coastal and open ocean areas during migration

Sabine's Gull, xema sabini, is a small and distinctive seabird known for its striking plumage and unique migratory patterns. Adults display a slender, graceful profile with a wingspan of approximately 81 to 84 cm. Their summer plumage features a dark hood, white triangles on the leading edges of the wings, and a black-tipped red bill, making them easily distinguishable from other gulls. In winter, the hood is lost, revealing a white head with a smudged grey patch behind the eye. Juveniles possess a brown mottled pattern that gradually transitions to adult plumage over a few years.

Sabine's Gull
Population:Listed as Least Concern, with stable populations
Generation Length:4 years
Average Weight:140-200 grams
Average Length:27-33 cm
Lifespan:Up to 10-15 years in the wild
Diet:Feeds on a variety of small marine creatures as well as insects during breeding season
Conservation Status:Least Concern (LC)
Echological Profile

Primarily breeding in the Arctic regions of Canada, Greenland, and Siberia, Sabine's Gulls nest on the ground in small colonies near water, often on tundra lakeshores or riverbanks. After breeding, they undertake a remarkable migration to spend the winter off the coasts of South America and Africa, showcasing their adaptability to varying marine environments. This extensive migration includes traveling along coastlines and open ocean, where they are often seen in mixed-species flocks.

The diet of Sabine's Gull is varied, including small fish, crustaceans, insects, and occasionally plant material. They are opportunistic feeders, adept at catching prey both at the surface of the water and in flight. Their feeding behavior can include following larger marine animals to catch prey disturbed by their movement, showcasing their intelligent foraging strategies.

Reproduction for Sabine's Gull involves laying two to three eggs in a shallow nest scrape, lined with vegetation. Both parents share incubation duties, which last about 24 to 26 days. The chicks are precocial, leaving the nest shortly after hatching but remaining dependent on their parents for food and protection.

The population of Sabine's Gull is considered stable, although they face threats from climate change, which affects their breeding habitats in the Arctic, and potential oil spills and pollution in their marine wintering grounds. Conservation efforts for Sabine's Gull focus on protecting critical breeding sites and monitoring population trends to ensure the sustainability of this unique species. Their annual migration is a subject of interest for ornithologists, highlighting the interconnectedness of global ecosystems.

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

Features

  • Movement:

    Flying, swimming

  • Territorial Behavior:

    Non-territorial, social during breeding and migratory periods

  • Speed:

    Fast and agile flyer, capable swimmer

  • Diet:

    Omnivore


  • Physical Features:
    • Small gull with a slender body and forked tail
    • Black head cap in breeding plumage with a white body and grey wings
    • Distinctive black and white pattern on the upper wings
    • Short legs and webbed feet for swimming
  • Primary Senses:
    • Sight
    • Hearing
Understanding Habitat and Range

Geography

  • Habitat:

    Arctic and subarctic regions for breeding; coastal and open ocean areas during migration

  • Migration Patterns:

    Long-distance migrant, traveling to tropical and subtropical oceans in the non-breeding season

  • Geographical Range:

    Breeds in the Arctic regions of North America, Europe, and Asia; winters offshore in the Atlantic, Pacific, and Indian Oceans

  • Climate Preferences:

    Cold arctic regions during breeding; warmer oceanic regions during winter

Navigating the Wilderness

In the wild

  • Predators:

    Birds of prey, foxes, and larger gulls

  • Prey:

    Small fish, invertebrates, and marine organisms

  • Feeding Behavior:

    Feeds on insects, small fish, and crustaceans, often catching prey on the wing or surface of the water

  • Diet:

    Feeds on a variety of small marine creatures as well as insects during breeding season


  • Defensive Mechanisms:
    • Agile flying to evade predators
    • Nesting in colonies to increase vigilance and protection
  • Preferred Food Sources:
    • Areas rich in small fish and marine invertebrates
Insights Into Reproduction

Mating

  • Mating System:

    Monogamous

  • Number of Offspring:

    Usually 2-3 eggs

  • Incubation Period:

    About 24-26 days


  • Parental Involvement:
    • Both parents share in incubation and feeding of the young
Wild Fun for Young Explorers
Youngsters Section
Sabine's Gull
Fun Fact

Sabine's Gull has a unique, striking wing pattern, featuring a bold black, white, and gray color scheme.

This gull breeds in the Arctic and undertakes long migratory journeys to the South Atlantic, covering thousands of miles. Its triangular tail and distinctive wing pattern make it easily recognizable. Sabine's Gull is often spotted in flocks during migration, exhibiting agile and graceful flight.

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