The Western Azores goldcrest (Regulus regulus inermis), Estrelinha-de-poupa in Portuguese, is a subspecies of the goldcrest. It is endemic to the Azores archipelago, in the North Atlantic Ocean, where it is a non-migratory resident of the islands of Flores, Faial, Terceira, São Jorge and Pico.Päckert, Martin; & Martens, Jochen. (2004). Song dialects on the Atlantic islands: goldcrests of the Azores (Regulus regulus azoricus, R. r. sanctae-mariae, R. r. inermis). Journal of Ornithology 145(1): 23-30.
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