Gerygone albofrontata

The Chatham Islands gerygone, also known as the Chatham gerygone or Chatham Island warbler, is a species of bird in the family Acanthizidae. It is endemic to the Chatham Islands. The Chatham Islands gerygone is larger than and differs in plumage from the related grey warbler of mainland New Zealand. Both warblers were discovered and named by G. R. Gray in 1845. The grey and Chatham Island warblers are the only two members of the Australasian family Acanthizidae found in New Zealand.

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