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Brief #
Small, square-tailed and has all-black plumage except for a snow-white rump.
Description #
It is square-tailed and has all-black plumage except for a snow-white rump that extends to the sides of the tail base and a broad white band on the under wings. Juveniles in fresh plumage can also show a narrow white bar on the upper wing. The plumage becomes dark brown rather than black as it becomes worn.[20] No obvious differences between the sexes are seen.
Measurements #
Length: 14 - 18 cm
Wingspan: 36 - 39 cm
Weight: 20 - 38 g
Gallery #
