Description wikipedia

The wedge-tailed sabrewing (Pampa curvipennis) is a species of hummingbird in the "emeralds", tribe Trochilini of subfamily Trochilinae. It is found in Belize, Guatemala, Mexico, and possibly Honduras. Two subspecies have sometimes been treated as separate species, the curve-winged sabrewing and the long-tailed sabrewing. The wedge-tailed sabrewing is 11.5 to 13.5 cm (4.5 to 5.3 in) long. Males weigh an average of about 6.6 g (0.23 oz) and females 5.0 g (0.18 oz). Their bill is straight, longish, and stout. Adult males have a bright violet crown, metallic green to bronze green upperparts, and bluish green uppertail coverts. Their tail feathers are mostly dull metallic bluish green that becomes purplish black at the ends. The outermost pair have dusky to brownish gray outer webs. Much of their face is dull grayish white to gray, with a white spot behind the eye. Their underparts are brownish gray. Adult females are very similar to the male. However, their crown is dull blue rather than bright violet, their underparts have a pale cinnamon wash, and the tips of the outermost tail feathers have a buff wash. Immature birds are similar to the adult female, with a duller crown whose feathers have buff tips.