Violet-fronted brilliant

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Violet-fronted brilliant
Violet-fronted Brilliant 2 JCB.jpg
male in eastern Ecuador
Heliodoxa leadbeateri.jpg
female from Cordillera del Cóndor, Ecuador.
CITES Appendix II (CITES) [2]
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Clade: Strisores
Order: Apodiformes
Family: Trochilidae
Genus: Heliodoxa
Species:
H. leadbeateri
Binomial name
Heliodoxa leadbeateri
(Bourcier, 1843)
Heliodoxa leadbeateri map.svg

The violet-fronted brilliant (Heliodoxa leadbeateri) is a species of hummingbird in the "brilliants", tribe Heliantheini in subfamily Lesbiinae. It is found Bolivia, Colombia, Ecuador, Peru, and Venezuela. [3] [4]

Contents

Taxonomy and systematics

The violet-fronted brilliant has four subspecies: [3]

Description

Male H. l. otero - Cock-of-the Rock Lodge, Peru (flash photo) Violet-fronted Brilliant-m.jpg
Male H. l. otero - Cock-of-the Rock Lodge, Peru (flash photo)
Female H. l. sagitta - Copa Linga Lodge, Ecuador (flash photo) Violet-fronted Brilliant-f.jpg
Female H. l. sagitta - Copa Linga Lodge, Ecuador (flash photo)

The violet-fronted brilliant is 11 to 13 cm (4.3 to 5.1 in) long. Males weigh 7.1 to 8.5 g (0.25 to 0.30 oz) and females 6.6 to 7.5 g (0.23 to 0.26 oz). Both sexes have a medium length, almost straight, black bill, a white malar streak, and a small white spot behind the eye. They both have a forked tail but the female's is less deeply indented than the male's. [5]

Males of the nominate subspecies have bronzy green upperparts with a glittering blue forehead and a coppery neck. They have a glittering emerald green gorget and a dull bronzy green breast and belly. The central pair of tail feathers are bronzy green, the next pair steel blue with bronze tips, and the rest dark steel blue. Females have coppery green upperparts with a glittering green forehead. Their underparts are white transitioning to buffy on the belly, and the throat and breast are thickly spotted with glittering green. The tail feathers have white tips. [5]

Males of subspecies H. l. parvula have a violet forehead and a paler and duller belly than the nominate. Their central tail feathers are lighter and greener than the nominate's and the rest more blackish. The female's belly has a cinnamon buff background. H. l. sagitta males have a blue forehead, a bluish breast, and the rest of the underparts and the tail like those of parvula. Females have a blue patch on the crown and an almost white belly. Males of H. l. otero have less coppery upperparts than the nominate; females have a brownish belly and little or no glittering on the forehead. [5]

Distribution and habitat

The subspecies of violet-fronted brilliant are found thus: [3] [5]

The species inhabits a variety of landscapes, mainly in the tropical and subtropical zones. It mainly occurs in the interior and edges of pre-montane rainforest and cloudforest, but is also found in scrub, clearings, secondary forest, and coffee plantations. In elevation it ranges between 400 and 2,400 m (1,300 and 7,900 ft). [5]

Behavior

Movement

The violet-fronted brilliant is sedentary. [5]

Feeding

The violet-fronted brilliant forages mostly in the lower to middle strata of the forest, typically below 10 m (30 ft). Unlike some other brilliants, it forages alone and does not share flowering trees with others. In addition to nectar, it also feeds on insects captured by hawking. Insects are a substantial part of its diet though details of the plants that it frequents are lacking. [5]

Breeding

The violet-fronted brilliant's nesting season spans from January to May. No other information about its breeding phenology has been published. [5]

Vocalization

What is thought to be the violet-brilliant's song is "a continuous series of single strident 'chup' or 'tchep' notes". It also makes "a repeated, bright, descending phrase 'whee-tsee-tsee-tsew' that sounds like a jerky twittering." [5]

Status

The IUCN has assessed the violet-fronted brilliant as being of Least Concern. It has a large range, but its population size is unknown and believed to be decreasing. [1] The species "appears to be quite common, at least locally." [5]

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References

  1. 1 2 BirdLife International (2018). "Violet-fronted Brilliant Heliodoxa leadbeateri". IUCN Red List of Threatened Species . 2018: e.T22687743A130121925. doi: 10.2305/IUCN.UK.2018-2.RLTS.T22687743A130121925.en . Retrieved 9 May 2022.
  2. "Appendices | CITES". cites.org. Retrieved 2022-01-14.
  3. 1 2 3 Gill, F.; Donsker, D.; Rasmussen, P., eds. (January 2022). "Hummingbirds". IOC World Bird List. v 12.1. Retrieved January 15, 2022.
  4. 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 MB] retrieved 27 May 2021
  5. 1 2 3 4 5 6 7 8 9 10 Heynen, I., P. F. D. Boesman, and G. M. Kirwan (2020). Violet-fronted Brilliant (Heliodoxa leadbeateri), 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.vifbri1.01 retrieved 9 May 2022