About Brotogeris cyanoptera (Pelzeln, 1870)
The cobalt-winged parakeet (Brotogeris cyanoptera (Pelzeln, 1870)) measures 18 to 20 cm (7.1 to 7.9 in) in length and has an average weight of 67 g (2.4 oz). The species is almost entirely green, with darker green upperparts. For the nominate subspecies B. c. cyanoptera, adults have a yellowish forehead, an orange chin, and a blue tinge on the crown and nape. Their flight feathers are blue, their central tail feathers are also blue, and the remaining tail feathers are green. Immature cobalt-winged parakeets are a duller version of adults. Subspecies B. c. gustavi has very little blue on the head and a yellow edge on the carpals. Subspecies B. c. beniensis is paler than the nominate subspecies, has a similar amount of blue on the head to the nominate, and has a yellow carpal edge like B. c. gustavi. The subspecies of the cobalt-winged parakeet have the following distributions: B. c. cyanoptera is found in the upper Amazon Basin, in eastern and southeastern Colombia, southern Venezuela, western Guyana, eastern Ecuador and Peru, northwestern Bolivia, and west-central Brazil; B. c. gustavi is found in the upper Huallaga River valley of northern Peru; B. c. beniensis is found in northeastern and central Bolivia, from Beni to Santa Cruz. The cobalt-winged parakeet lives in a variety of landscapes, including rainforest interior and edges, secondary forest, várzea, savanna, and Llanos. It commonly occurs up to an elevation of 1,000 m (3,300 ft), and occasionally up to 1,350 m (4,400 ft).
