Tumbes Hummingbird

The Tumbes hummingbird (Thaumasius baeri) is a species of hummingbird in the "emeralds", tribe Trochilini of subfamily Trochilinae. It is found in Ecuador and Peru. == Taxonomy and systematics == This species was formerly placed in the genus Leucippus. A molecular phylogenetic study published in 2014 found that Leucippus was polyphyletic. To resolve the polyphyly the Tumbes hummingbird and the spot-throated hummingbird (Taphrospilus hypostictus) were moved by most taxonomic systems to the resurrected genus Thaumasius. However, BirdLife International's Handbook of the Birds of the World retains it in Leucippus. The Tumbes hummingbird is monotypic. == Description == The Tumbes hummingbird is 8 to 11 cm (3.1 to 4.3 in) long and weighs about 4.5 g (0.16 oz). The sexes are essentially alike. They have a nearly straight black bill. Their upperparts are pale golden green and their underparts pale grayish that becomes white on the belly. The tail feathers are pale green; the inner ones have bronzy tips and the outer ones a dusky gray band near the end and tips that are whitish in the male and grayish in the female. == Distribution and habitat == The Tumbes hummingbird is found in southwestern Ecuador's El Oro and Loja provinces…