Berylline Hummingbird

The berylline hummingbird (Saucerottia beryllina) is a species of hummingbird in the "emeralds", tribe Trochilini of subfamily Trochilinae. It is found in El Salvador, Guatemala, Honduras, Mexico, and the United States. == Taxonomy and systematics == The berylline hummingbird was formerly placed in the genus Amazilia. A molecular phylogenetic study published in 2014 found that the genus Amazilia was polyphyletic. In the revised classification to create monophyletic genera, the berylline hummingbird was moved by most taxonomic systems to the resurrected genus Saucerottia. However, BirdLife International's Handbook of the Birds of the World retains it in Amazilia. The berylline hummingbird has these five subspecies: S. b. viola (Miller, W, 1905) S. b. beryllina (Deppe, 1830) S. b. lichtensteini (Moore, RT, 1950) S. b. sumichrasti (Salvin, 1891) S. b. devillei (Bourcier & Mulsant, 1848) == Description == The berylline hummingbird is 8 to 10 cm (3.1 to 3.9 in) long. Males weigh about 4.4 g (0.16 oz) and females about 4.0 g (0.14 oz). The bills of males of all subspecies have a black maxilla and a pinkish mandible with a black outer half. Adult males of the nominate subspecies S. b. beryllina have a bronze-green to coppery head, back and rump.…