The São Miguel goldcrest (Regulus regulus azoricus), Estrelinha-de-poupa in Portuguese, is a subspecies of the goldcrest. One of several goldcrest insular subspecies in the North Atlantic archipelagos of Macaronesia, it is endemic to São Miguel in the Azores where it is a non-migratory resident.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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