Snowcap

The snowcap (Microchera albocoronata) is a species of hummingbird in the "emeralds", tribe Trochilini of subfamily Trochilinae. It is found in Costa Rica, Honduras, Nicaragua, and Panama. == Taxonomy and systematics == The snowcap has two subspecies, the nominate M. a. albocoronata and M. a. parvirostris. The nominate was originally described as Mellisuga albo-coronata and the other as Panychlora parvirostris. == Description == The snowcap is 6.5 to 7 cm (2.6 to 2.8 in) long and weighs about 2.7 g (0.095 oz). Both sexes of both subspecies have a short black bill and black legs. Adult males of both subspecies have the white forehead and crown that give this species its English and scientific names. Males of the nominate subspecies have dark purple upperparts with a purplish black nape and a reddish gloss on the back, rump, and uppertail coverts. Their face and underparts are black with a reddish purple gloss. Their central tail feathers are metallic bronze and the rest have white bases and black ends. Males of M. a. parvirostris differ by having less white on the tail feathers and a brighter coppery purple gloss to their upper- and underparts. Adult females of both subspecies have a metallic…