About Cyanoloxia glaucocaerulea (d'Orbigny & Lafresnaye, 1837)
The glaucous-blue grosbeak (Cyanoloxia glaucocaerulea) has an approximate total length of 14 cm (5.5 in). Three measured individuals weighed between 16 g and 19.5 g (0.56 oz to 0.69 oz). Adult males are mostly dark sky blue, with lighter blue coloration on the forehead and rump, and grayish coloration on the lower belly. They have a small black facial "mask". Adult females are brown overall: they have warm, dark brown plumage on their upperparts, and orange-tinged brown plumage on their underparts. Immature glaucous-blue grosbeaks are orange-brown, with darker coloration on the back, and a faint blue tint on the forehead and cheek. This species breeds in northeastern Argentina, southeastern Brazil, and most of Uruguay. During the austral winter, some individuals migrate to southeastern Paraguay and areas further north in Brazil. It lives in low, moderately dense vegetation types, including habitats along forest edges, on river islands, in marshes, and in secondary forest. In Brazil, it occurs at elevations from near sea level up to 1,700 m (5,600 ft).
