The coppery emerald (''Chlorostilbon russatus'') is a

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...

hummingbird Hummingbirds are birds native to the Americas and comprise the biological family Trochilidae. With about 361 species and 113 genera, they occur from Alaska to Tierra del Fuego, but the vast majority of the species are found in the tropics aro ...

in the "emeralds", tribe Trochilini of subfamily Trochilinae. It is found in

Colombia Colombia (, ; ), officially the Republic of Colombia, is a country in South America with insular regions in North America—near Nicaragua's Caribbean coast—as well as in the Pacific Ocean. The Colombian mainland is bordered by the Car ...

and

Venezuela Venezuela (; ), officially the Bolivarian Republic of Venezuela ( es, link=no, República Bolivariana de Venezuela), is a country on the northern coast of South America, consisting of a continental landmass and many islands and islets in th ...

.HBW and BirdLife International (2020) ''Handbook of the Birds of the World and BirdLife International digital checklist of the birds of the world'' Version 5. Available at: http://datazone.birdlife.org/userfiles/file/Species/Taxonomy/HBW-BirdLife_Checklist_v5_Dec20.zip xls zipped 1 MBretrieved 27 May 2021

Taxonomy and systematics

The coppery emerald is

monotypic In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispec ...

Description

The male coppery emerald is long and females . The species weighs between . Both sexes have a short, straight, black bill. The male's forehead, crown, and upperparts are shining golden green. Its uppertail

coverts A covert feather or tectrix on a bird is one of a set of feathers, called coverts (or ''tectrices''), which, as the name implies, cover other feathers. The coverts help to smooth airflow over the wings and tail. Ear coverts The ear coverts are sm ...

are coppery green, and its slightly forked tail is golden coppery. Its underparts are glittering golden green. The female's forehead, crown, upperparts, flanks, and uppertail coverts are coppery green and its underparts are smoky gray. Its tail is also slightly forked; its feathers are greenish coppery and the outer four pairs of feathers have a coppery purple band near the end and pale tips. Immature coppery emeralds are similar to adult females with buffy fringes on the feathers of the head.Bündgen, R. and P. F. D. Boesman (2020). Coppery Emerald (''Chlorostilbon russatus''), version 1.0. In Birds of the World (J. del Hoyo, A. Elliott, J. Sargatal, D. A. Christie, and E. de Juana, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.copeme1.01 retrieved August 2, 2022

Distribution and habitat

The coppery emerald is found in Colombia's lower Magdalena River valley and

Santa Marta Santa Marta (), officially Distrito Turístico, Cultural e Histórico de Santa Marta ("Touristic, Cultural and Historic District of Santa Marta"), is a city on the coast of the Caribbean Sea in northern Colombia. It is the capital of Magdalena ...

department (including the

Sierra Nevada de Santa Marta The Sierra Nevada de Santa Marta (English: ''Snow-Covered Mountain Range of Saint Martha'') is an isolated mountain range in northern Colombia, separate from the Andes range that runs through the north of the country. Reaching an elevation of ...

) and also

Serranía del Perijá The Serranía del Perijá, Cordillera de Perijá or Sierra de Perijá is a mountain range, an extension of the eastern Andean branch ( Cordillera Oriental), in northern South America, between Colombia and Venezuela Venezuela (; ), offici ...

that straddles the northern Colombia/western Venezuela border. It inhabits semi-open and open landscapes such as scrublands, forest edges, and cultivated areas. The coppery emerald’s elevation (flight height) ranges from sea-level to . It is usually between .

Behavior

Movement

The coppery emerald is generally sedentary. It may vary its height (elevation) to adapt to the season.

Feeding

The coppery emerald forages for nectar by

trap-lining In ethology and behavioral ecology, trap-lining or traplining is a feeding strategy in which an individual visits food sources on a regular, repeatable sequence, much as trappers check their lines of traps. Traplining is usually seen in species ...

, visiting a circuit of a variety of flowering plants, especially Leguminaceae, Rubiaceae, Heliconiaceae, and

Gesneriaceae Gesneriaceae, the gesneriad family, is a family of flowering plants consisting of about 152 genera and ca. 3,540 species in the tropics and subtropics of the Old World (almost all Didymocarpoideae) and the New World (most Gesnerioideae), with ...

. It generally forages between above the ground. It captures small insects by

hawking Hawking may refer to: People * Stephen Hawking (1942–2018), English theoretical physicist and cosmologist *Hawking (surname), a family name (including a list of other persons with the name) Film * ''Hawking'' (2004 film), about Stephen Haw ...

from a perch and sometimes by gleaning from vegetation.

Breeding

The coppery emerald breeds in May and June. It makes a cup nest lined with downy plant material, typically on a sloping branch about above the ground. The female incubates the clutch of two eggs for 15 to 16 days and fledging occurs about 20 days after hatch.

Vocalization

The coppery emerald makes "a repeated short 'tsik' or 'trk'" while feeding.

Status

The

IUCN The International Union for Conservation of Nature (IUCN; officially International Union for Conservation of Nature and Natural Resources) is an international organization working in the field of nature conservation and sustainable use of natu ...

has assessed the coppery emerald as being of Least Concern, though it has a limited range and its population size and trend are unknown. No immediate threats have been identified. It is patchily distributed and considered uncommon to locally common. It readily uses human-made landscapes like plantations and parks.

References

{{Taxonbar, from=Q1261475 coppery emerald Birds of the Sierra Nevada de Santa Marta Birds of the Serranía del Perijá coppery emerald coppery emerald coppery emerald Taxonomy articles created by Polbot