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extending up the sides of the neck to the chestnut on the ear coverts; lower breast and abdomen black, banded with white, the light bars on the flanks and vent feathers being tinged with ochreous; under-tail coverts broadly banded with black and ochre; under-wing coverts and axillaries blackish, barred with white; under surface of quills chestnut, with broad black bars.
Wing 4.8 inches, culmen 1.35, tail 2.7" (Sharpe).
Habitat: Chatham Islands.
The type and only known specimen is that in the British Museum.
