BirdsBlue-grey Tanager in Costa Rica May 19, 2023August 23, 2023 - by hangbony The Thraupis episcopus, a blue-gray tanager, is about 18 cm long and weighs around 35 grams. The heads of adult birds are a light gray color, with darker upperparts and a light blue-gray underside. Their bills are thick and somewhat short.
