| Green-breasted mountaingem | |
|---|---|
 | |
| A female | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Aves |
| Order: | Apodiformes |
| Family: | Trochilidae |
| Genus: | Lampornis |
| Species: | L. sybillae |
| Binomial name | |
| Lampornis sybillae | |
The green-breasted mountaingem or green-breasted mountain-gem (Lampornis sybillae) is a species of hummingbird in tribe Lampornithini of subfamily Trochilinae. It is found in Honduras and Nicaragua. [3] [4]
The green-breasted mountaingem has sometimes been considered conspecific with its close relative the green-throated mountaingem (Lampornis viridipallens) or may form a superspecies with it. [5] [6] It is monotypic. [3]
The green-breasted mountaingem is about 10 to 11 cm (3.9 to 4.3 in) long and weighs about 4 to 7 g (0.14 to 0.25 oz); males are larger than females. It has a medium-length straight black bill. Adults of both sexes have deep metallic grass green upperparts with some bronze on the rump and black uppertail coverts. They have a white stripe that curves down behind the eye and deep metallic grass green cheeks with a thin white stripe below them. [6]
Adult males' underparts are also mostly metallic grass green, with white or grayish white margins on the feathers. Their lower belly, vent area, and leg tufts are white. Their inner undertail coverts are green with white edges and the outer ones dusky gray with wide white edges. Their central tail feathers are grayish black and the others pale gray to grayish white with dusky margins. [6]
Adult females have a buff chin and throat and grayish white underparts with metallic green on the sides of the breast. The outermost two pairs of tail feathers are white or grayish white with a dusky gray bar near the end; neither have the male's dusky margins. Some individuals have a green sheen on the upperside of the central tail feathers, which males never have. [6]
Juveniles have dark green mottling on their throat and buffy to cinnamon tips on the upperparts' feathers. Older immature birds begin to show the adults' throat and tail colors. [6]
The green-breasted mountaingem is found in central and eastern Honduras and northwestern Nicaragua. It inhabits the interior and edges of humid evergreen and pine-oak forest and also the transition zone from the latter into cloudforest. In elevation it generally ranges between 1,400 and 2,200 m (4,600 and 7,200 ft), though some authors extend that range to between 750 and 2,400 m (2,500 and 7,900 ft). [6]
The green-breasted mountaingem is thought to make seasonal elevational movements. [6]
The green-breasted mountaingem feeds on nectar and small insects and spiders, but details of it diet and foraging techniques are lacking. [6]
Almost nothing is known about the green-breasted mountaingem's breeding phenology. Data suggest that its breeding season is approximately November to February. [6]
The green-breasted mountaingem's song is "a soft, scratchy warble...often with a trill at the end". Males usually sing from hidden perches, though sometimes in the open or in flight. Both sexes give "short, buzzy 'shrrrt' calls" while feeding. [6]
The IUCN has assessed the green-breasted mountaingem as being of Least Concern, though its population size is unknown and believed to be decreasing. No immediate threats have been identified. [1] "[A]ppropriate habitat in the Green-breasted Mountain-gem’s small and patchy distribution is likely to further decrease in size" due to global warming. [6]
The blue-throated mountaingem, also known as the blue-throated mountain-gem or blue-throated hummingbird is a species of hummingbird in tribe Lampornithini of subfamily Trochilinae. It is found in Mexico and the United States.
The grey-tailed mountaingem, also variously spelled gray-tailed mountaingem, grey-tailed mountain-gem, or gray-tailed mountain-gem, is a species of hummingbird in tribe Lampornithini of subfamily Trochilinae. It is endemic to Costa Rica.
The purple-throated mountaingem is a species of hummingbird in tribe Lampornithini of subfamily Trochilinae. It is found in Costa Rica, Nicaragua, and Panama.
The white-throated mountaingem or white-throated mountain-gem is a species of hummingbird in tribe Lampornithini of subfamily Trochilinae. It is endemic to Panama.
Mountaingems are a genus of hummingbirds, Lampornis, which inhabit mountainous regions from the south-western United States to the Isthmus of Panama.
The green thorntail is a small hummingbird in the "coquettes", tribe Lesbiini of subfamily Lesbiinae. It is found in Colombia, Costa Rica, Ecuador, and Panama.
The violet-chested hummingbird is a species of hummingbird in the "mountain gems", tribe Lampornithini in subfamily Trochilinae. It is found in Colombia and Venezuela.
The plain-capped starthroat is a species of hummingbird in the "mountain gems", tribe Lampornithini in subfamily Trochilinae. It is found from Mexico to Costa Rica.
The chestnut-breasted coronet is a species of hummingbird in the "brilliants", tribe Heliantheini in subfamily Lesbiinae. It is found in Colombia, Ecuador, and Peru.
The beautiful sheartail or beautiful hummingbird is a species of hummingbird in tribe Mellisugini of subfamily Trochilinae, the "bee hummingbirds". It is endemic to Mexico.
The golden-crowned emerald is a species of hummingbird in the "emeralds", tribe Trochilini of subfamily Trochilinae. It is endemic to western Mexico.
The blue-tufted starthroat is a species of hummingbird in the "mountain gems", tribe Lampornithini in subfamily Trochilinae. It is found in Argentina, Bolivia, Brazil, Colombia, Paraguay, Peru, Uruguay and possibly Ecuador.
The stripe-breasted starthroat is a species of hummingbird in the "mountain gems", tribe Lampornithini in subfamily Trochilinae. It is endemic to Brazil.
The amethyst-throated mountaingem, also called amethyst-throated mountain-gem or amethyst-throated hummingbird, is a species of hummingbird in tribe Lampornithini of subfamily Trochilinae. It is found in El Salvador, Guatemala, Honduras, and Mexico.
The white-bellied mountaingem or white-bellied mountain-gem is a species of hummingbird in tribe Lampornithini of subfamily Trochilinae. It is found in Costa Rica and Panama.
The green-throated mountaingem or green-throated mountain-gem is a species of hummingbird in tribe Lampornithini of subfamily Trochilinae. It is found in El Salvador, Guatemala, Honduras, and Mexico.
The garnet-throated hummingbird is a species of hummingbird in tribe Lampornithini of subfamily Trochilinae. It is found in El Salvador, Guatemala, Honduras, and Mexico.
The dot-eared coquette is a species of hummingbird in the "coquettes", tribe Lesbiini of subfamily Lesbiinae. It is found in Bolivia and Brazil.
The black-crested coquette is a species of hummingbird in the "coquettes", tribe Lesbiini of subfamily Lesbiinae. It is found in Belize, Costa Rica, Guatemala, Honduras, Mexico, and Nicaragua.
The Talamanca hummingbird is a species of hummingbird in the "mountain gems", tribe Lampornithini in subfamily Trochilinae. It is found in Costa Rica and Panama.
