Range
Endemic to Gough Island of the Tristan da Cunha group (St Helena, UK) in the South Atlantic Ocean. The population was estimated at approximately 200 pairs in 1974 and 1,500 pairs in 1991, but recent surveys of breeding territories in 2007 suggest a population of just 400 – 500 pairs (2).
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View a distribution map for this species at UNEP World Conservation Monitoring Centre.
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Habitat
Most common in tussock-grassland, wet heath and among scrub up to 800 m, occuring at lower densities in fern-bush and peat-bogs (2) (3).