Brown Violetear
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The brown violetear (''Colibri delphinae'') is a large
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 ...
that breeds at middle elevations in the mountains in
Central America Central America ( es, América Central or ) is a subregion of the Americas. Its boundaries are defined as bordering the United States to the north, Colombia to the south, the Caribbean Sea to the east, and the Pacific Ocean to the west. ...
, and western and northern
South America South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere at the northern tip of the continent. It can also be described as the southe ...
(primarily the
Andes The Andes, Andes Mountains or Andean Mountains (; ) are the longest continental mountain range in the world, forming a continuous highland along the western edge of South America. The range is long, wide (widest between 18°S – 20°S ...
and the
tepui A tepui , or tepuy (), is a table-top mountain or mesa found in South America, especially in Venezuela and western Guyana. The word tepui means "house of the gods" in the native tongue of the Pemon, the indigenous people who inhabit the Gran S ...
s) with isolated populations on
Trinidad Trinidad is the larger and more populous of the two major islands of Trinidad and Tobago. The island lies off the northeastern coast of Venezuela and sits on the continental shelf of South America. It is often referred to as the southernmos ...
and in the
Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...
ian state
Bahia Bahia ( , , ; meaning "bay") is one of the 26 Federative units of Brazil, states of Brazil, located in the Northeast Region, Brazil, Northeast Region of the country. It is the fourth-largest Brazilian state by population (after São Paulo (sta ...
. The breeding habitat is forest at altitudes between 400 and 1600 m, but the brown Violet-ear will spread widely into the lowlands when not nesting. It is replaced at higher altitudes by its relative, the
lesser violetear The lesser violetear (''Colibri cyanotus''), also known as the mountain violet-ear, is a medium-sized, metallic green hummingbird species commonly found in forested areas from Costa Rica to northern South America. This species and the Mexican ...
(''C. cyanotus''), but their ranges overlap widely. The brown violetear is typically found high in the canopy of the rainforest, tall second growth and
coffee Coffee is a drink prepared from roasted coffee beans. Darkly colored, bitter, and slightly acidic, coffee has a stimulant, stimulating effect on humans, primarily due to its caffeine content. It is the most popular hot drink in the world. S ...
plantations, but it will feed at lower levels at edges and clearings. The nest is a small cup of plant down saddled on a twig 1–3 m. high in a bush, into which two white eggs are laid. The 11.5 cm long, 6.5-7 g weight brown violetear is unmistakable; it is mainly dull brown, with a rufous rump and greyer underparts. There is a violet patch running back and down from the eye, a hermit-like malar stripe, and a glittering green and blue throat stripe. The bill is relatively short and almost straight. The female is similar to the male, but has a smaller throat patch. Immature bird have rufous fringes to the upperpart plumage, and little or no violet behind the eyes. The song is a vigorous repetition of the ''chit'' call, and is delivered by up to several dozen breeding males in loose
leks A lek is an aggregation of male animals gathered to engage in competitive displays and courtship rituals, known as lekking, to entice visiting females which are surveying prospective partners with which to mate. A lek can also indicate an avail ...
. The brown violetear feeds on nectar from small flowers of trees,
shrub A shrub (often also called a bush) is a small-to-medium-sized perennial woody plant. Unlike herbaceous plants, shrubs have persistent woody stems above the ground. Shrubs can be either deciduous or evergreen. They are distinguished from trees ...
shttps://sta.uwi.edu/fst/lifesciences/sites/default/files/lifesciences/documents/ogatt/Colibri_delphinae%20-%20Brown%20Violet-ear.pdf and
epiphyte An epiphyte is an organism that grows on the surface of a plant and derives its moisture and nutrients from the air, rain, water (in marine environments) or from debris accumulating around it. The plants on which epiphytes grow are called phoroph ...
s. It also takes
insect Insects (from Latin ') are pancrustacean hexapod invertebrates of the class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body ( head, thorax and abdomen), three pairs ...
s, often caught in flight (
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 ...
), as an essential source of protein. Although not particularly territorial, this species is highly aggressive, and at feeders seems to spend far more time attacking other hummingbirds than actually feeding. Brown violetear (Colibri delphinae).jpg, showing violet auricular Brown violetear (Colibri delphinae) in flight.jpg, showing green gorget Brown Violetear (22164536820).jpg, showing violet auricular


References

* * Hilty, '' Birds of Venezuela'' by, * Stiles and Skutch, ''A guide to the birds of Costa Rica''


External links


Brown Violet-ear videos
on the Internet Bird Collection {{Taxonbar, from=Q535416
brown violetear The brown violetear (''Colibri delphinae'') is a large hummingbird that breeds at middle elevations in the mountains in Central America, and western and northern South America (primarily the Andes and the tepuis) with isolated populations on Trin ...
Hummingbird species of Central America Hummingbird species of South America Birds of Trinidad and Tobago Birds of the Guianas Birds of the Northern Andes Birds of the Venezuelan Coastal Range
brown violetear The brown violetear (''Colibri delphinae'') is a large hummingbird that breeds at middle elevations in the mountains in Central America, and western and northern South America (primarily the Andes and the tepuis) with isolated populations on Trin ...
Taxa named by René Lesson Birds of the Tepuis