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Red-legged Kittiwake, burung Langka di Roost (buka ukuran penuh)

Burung laut (Seabirds)

Red-legged Kittiwake

Rissa brevirostris

  • langka
  • 55 km/h
  • Rentan

Breeds on only four island groups in the Bering Sea. Coral-red legs, big dark eyes, vanishingly rare.

Populasi
~280,000-380,000 mature individuals (declining)
Habitat
Breeds on sheer sea cliffs on remote Bering Sea islands; forages over deep offshore waters (200-2,000 m) during breeding season; pelagic, wintering far out at sea
Fakta menarik
Unlike its more common relative the Black-legged Kittiwake, the Red-legged Kittiwake breeds at only four remote island groups in the Bering Sea and is named for its bright red (rather than black) legs.
Sebaran
Breeds at only four island groups in the Bering Sea: the Pribilof Islands, Bogoslof Island, and Buldir Island (Alaska, USA) and the Commander Islands (Russia); ranges/winters across the North Pacific including the Gulf of Alaska, Sea of Okhotsk, and Kuril Islands, with occasional vagrants to Japan and the western US
Makanan
Mainly small fish (especially lanternfish/myctophids and walleye pollock), plus squid and zooplankton
Ukuran
0,37 m
Bentang sayap
0,88 m
Masa hidup
15 tahun

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