Chestnut-breasted Coronet

The chestnut-breasted coronet (Boissonneaua matthewsii) is a species of hummingbird in the "brilliants", tribe Heliantheini in subfamily Lesbiinae. It is found in Colombia, Ecuador, and Peru. == Taxonomy and systematics == The chestnut-breasted coronet shares genus Boissonneaua with two other coronets, the buff-tailed (B. flavescens) and velvet-purple (B. jardini). It is monotypic. == Description == The chestnut-breasted coronet is 10.5 to 13 cm (4.1 to 5.1 in) long and weighs about 6.5 to 8.3 g (0.23 to 0.29 oz). Both sexes have a short, straight, black bill, a white spot behind the eye, and a notched tail. Males have metallic green upperparts. Their throat has yellowish green speckles on a buff base and the rest of the underparts are reddish chestnut with some green speckles on the flanks. The central tail feathers are bronzy and the rest reddish chestnut with bronzy tips. The female's plumage is almost identical, but with somewhat paler underparts and less speckling on the throat. == Distribution and habitat == The chestnut-breasted coronet is found from extreme southeastern Colombia south along the east slope of the Andes through Ecuador and Peru as far as Cuzco Department. It also occurs on the west slope of the Andes…