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Brief #
Silver and black spotted upperparts, a black face, neck and belly.
Description #
In summer it has silver and black spotted upperparts, a black face, neck and belly. In winter, it loses the black feathers and takes on a browny-grey look. In both plumages, the rump is white and in flight in winter it shows distinctive black 'armpits'.
Measurements #
Length: 28 - 28 cm
Wingspan: 77 - 77 cm
Weight: 240 - 240 g
Gallery #
