“…The coloration of plumage for females and juveniles of Blue-gray Tanager is blue-gray are a dull blue overall (Howell & Webb, 1995;Peterson & Chalif, 1998;Van Perlo, 2006). The record presented here confirms the presence of the Blue-gray Tanager in areas that lack previous published records (Sánchez-González, 2013); furthermore, similar records in Guerrero (Blancas-Calva et al, 2017) and the Yucatan Peninsula (Rodríguez-Ruíz et al, 2011) have been related to the expansion of range of this species due to the presence of human altered habitats that promote the establishment of bird populations in new areas (Castro-Torreblanca & Blancas-Calva, 2014). Puerto Escondido is located on the central coast of Oaxaca, and our photographic records confirm the presence of this species (Sánchez-González, 2013), but this punctual record should be considered as unusual for this area unless more records are documented in intermediate areas.…”