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Skua, Arctic

  


Name: Skua, Arctic

Scientific name: Stercorarius parasiticus

Type: Skua

Color: Black,Grey,White

Habitat: Coast,Ocean,Water

Size: 51-56cm




Conservation status:

Winter Visitor


Description:

Wing-span as for Common Gull. Adult in summer has elongated pointed central tail-feathers (6–11 cm). Two phases (with frequent intermediates); see Pomarine for separation. Juvenile variable, from pale to very dark birds; ground-colour generally warmer, more rusty than young Pomarine, which see for further details. Told, with experience, from young Long-tailed by broader wings, slightly shorter tail (equals width of wing-base), shorter and pointed central tail-feathers (longer, blunt-ended in Long-tailed), thicker rear-body, less black on bill-tip and warmer brownish groundcolour (colder, greyer in Long-tailed, which see for further details). Normal flight steady, falcon-like, straight and fast; piratical attacks with sudden twists and turns, most successfully on birds the size of Sandwich Tern/Common Gull.




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