In this list of Birds of the Chatham Islands. In 1995, Chatham Islands County was dissolved and reconstituted by a specific Act of Parliament as the "Chatham Islands Territory", with powers similar to those of territorial authorities and some functions similar to those of a regional council. They form an archipelago in the Pacific Ocean about 650 kilometres (400 mi) east of mainland New Zealand.This list's taxonomic treatment and nomenclature (common and scientific names) mainly follows the conventions of The Clements Checklist of Birds of the World, 2022 edition. Some supplemental referencing is that of the Avibase Bird Checklists of the World as of October 2022.