Blue-tailed Emerald (Chlorostilbon mellisugus)

Order: Apodiformes Family: Trochilidae | IUCN Status: Least Concern

Age: Adult | Sex: Males | Loc. Southeast Peru

Age: Adult | Sex: Male | Loc. Southeast Peru

Age: Adult | Sex: Female | Loc. Southeast Peru

Age: Adult | Sex: Female | Loc. Southeast Peru

Identification & Behavior: ~7.5 cm (3 in). The male Blue-tailed Emerald is mostly iridescent green with a slightly notched blue tail. The throat and breast are tinged with iridescent blue. The female is green above and gray below with a dusky or green mask across the eye bordered above by a white stripe starting behind the eye. The tail is dusky blue with gray tips. The bill in both sexes is straight and black. The male Blue-tailed Emerald is similar to a male Blue-chinned Sapphire but is distinguished by having a notched tail, smaller size, and black bill.

Status: The Blue-tailed Emerald is uncommon and widespread in Amazonia where it is known to range up to 2000 m along the foothill of the Andes. It also occurs in Co, Ec, Br, and Bo.

Name in Spanish: Esmeralda de Cola Azul.

Sub-species: Blue-tailed Emerald (Chlorostilbon mellisugus phoeopygus), Tschudi, 1844. Upper Amazon and its E tributaries in Colombia, Ecuador and Peru.
(Chlorostilbon mellisugus napensis), Gould, 1861. Napensis= phoeopygus.
(Chlorostilbon mellisugus peruanus) Gould, 1861. SE Peru, N & E Bolivia and W Brazil.

Meaning of Name: Chlorostilbon:  Gr. khlōros  green and stilbōn, stilbontos= shining, an epithet of the planet Mercury. mellisugus: L. mel, mellis= honey and sugere= to suck.

See more of the Family Trochilidae   peru aves

Distribution Map
blue-tailed emeraldVoice


    • Species range based on: Schulenberg, T. S., D. F. Stotz, and L. Rico. 2006. Distribution maps of the birds of Peru, version 1.0. Environment, Culture & Conservation (ECCo). The Field Museum. on 08/01/2015.