Dusky Hummingbird

The dusky hummingbird (Phaeoptila sordida) is a species of hummingbird in the "emeralds", tribe Trochilini of subfamily Trochilinae. It is endemic to Mexico. == Taxonomy and systematics == The dusky hummingbird was formerly placed in the genus Cynanthus. Based on a molecular phylogenetic study published in 2014 and a 2017 publication, the North American Classification Committee of the American Ornithological Society, the International Ornithological Committee (IOC), and the Clements taxonomy moved it to the resurrected genus Phaeoptila that had been introduced in 1861 by John Gould. However, as of 2020 BirdLife International's Handbook of the Birds of the World (HBW) retained it in Cynanthus. The dusky hummingbird is the only species in genus Phaeoptila and has no subspecies. == Description == The dusky hummingbird is 9 to 10.6 cm (3.5 to 4.2 in) long. Males weigh about 4.3 g (0.15 oz) and females about 3.4 g (0.12 oz). Males have a bright red bill with a black tip. Their upperparts are bronze green to greenish bronze that is more brownish or grayish on the crown and uppertail coverts. The tail is dull greenish bronze or grayish brown with a greenish gloss and dusky feather bases. It has a grayish streak…