Heliangelus micrastur

Life-forms

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Cladus: Sarcopterygii
Cladus: Rhipidistia
Cladus: Tetrapodomorpha
Cladus: Eotetrapodiformes
Cladus: Elpistostegalia
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Classis: Reptilia
Cladus: Eureptilia
Cladus: Romeriida
Subclassis: Diapsida
Cladus: Sauria
Infraclassis: Archosauromorpha
Cladus: Crurotarsi
Divisio: Archosauria
Cladus: Avemetatarsalia
Cladus: Ornithodira
Subtaxon: Dinosauromorpha
Cladus: Dinosauriformes
Cladus: Dracohors
Cladus: Dinosauria
Ordo: Saurischia
Cladus: Eusaurischia
Subordo: Theropoda
Cladus: Neotheropoda
Cladus: Averostra
Cladus: Tetanurae
Cladus: Avetheropoda
Cladus: Coelurosauria
Cladus: Tyrannoraptora
Cladus: Maniraptoromorpha
Cladus: Maniraptoriformes
Cladus: Maniraptora
Cladus: Pennaraptora
Cladus: Paraves
Cladus: Eumaniraptora
Cladus: Avialae
Infraclassis: Aves
Cladus: Avebrevicauda
Cladus: Pygostylia
Cladus: Ornithothoraces
Cladus: Ornithuromorpha
Cladus: Carinatae
Parvclassis: Neornithes
Cohors: Neognathae
Cladus: Neoaves
Superordo: Caprimulgimorphae
Ordo: Apodiformes

Familia: Trochilidae
Subfamilia: Trochilinae
Genus: Heliangelus
Species: Heliangelus micraster
Subspecies: H. m. cutervensis – H. m. micraster
Name

Heliangelus micraster Gould, 1872

Type locality: San Lucas, Ecuador.

Synonyms

Heliangelus micrastur (orth. err.)

References

Gould, J. 1872. Descriptions of two new Species of Humming-Birds. The Annals and Magazine of Natural History, including Zoology, Botany, and Geology 4(9): 195–196 BHL Reference page.

Vernacular names
English: Little Sunangel
español: Colibrí lucero
suomi: Pikkuenkelikolibri

The flame-throated sunangel or little sunangel (Heliangelus micraster) is a species of hummingbird in the "coquettes", tribe Lesbiini of subfamily Lesbiinae. It is found in Ecuador and Peru.[3][4][5]
Taxonomy and systematics

The flame-throated sunangel has been considered conspecific with the gorgeted sunangel (H. exortis).[6] It has two subspecies, the nominate H. m. micraster and H. m. cutervensis.[3]
Painting by John Gould.
Description

The flame-throated sunangel is 10 to 11 cm (3.9 to 4.3 in) long and weighs 3.6 to 4.1 g (0.13 to 0.14 oz). Its straight bill is blackish. Both sexes have dark metallic green upperparts. Their lower breasts are dark metallic green, their bellies grayish, and their vent areas almost white. Their tails are dark steel blue. Adult males of the nominate subspecies have a glittering blue-green frontlet just above the bill, a dark purplish blue chin, and an iridescent yellow-orange gorget with a glittering emerald green border. Adult females lack the blue-green frontlet, their chin is blackish, and their throat is white with green to dusky gray speckles and sometimes a few iridescent reddish orange discs. Juveniles are like the adult female but the male does not have the blackish chin. Males of subspecies H. m. cutervensis have a reddish orange gorget.[7]
Distribution and habitat

The nominate subspecies of flame-throated sunangel is found on the eastern slope of the Andes from Ecuador's Morona-Santiago Province into northern Peru. H. m. cutervensis is found in Peru's Department of Cajamarca. The species inhabits the interior and borders of dense mossy forest. In elevation it mostly ranges between 2,300 and 3,400 m (7,500 and 11,200 ft) but has been recorded as low as 1,500 m (4,900 ft).[7]
Behavior
Movement

The flame-throated sunangel is mostly sedentary but disperses altitundinally after the nesting season.[7]
Feeding

The flame-throated sunangel defends foraging areas. It mostly feeds on nectar, usually at flowers at low to medium heights above the ground, within the forest and on its borders. Females often venture further into bushy pastures. It usually clings to flowers to feed rather than hovering at them. It also captures insects by hawking from a perch and by gleaning from vegetation.[7]
Breeding

The flame-throated sunangel's breeding season spans from January to May in Ecuador but has not been defined in Peru. The clutch of two white eggs is incubated by the female. Nothing else is known about the species' breeding phenology.[7]

Dickcissel male perched on a metal pole singing, with neck stretched and beak open.

Songs and calls
Listen to flame-throated sunangel on xeno-canto
Vocalization

The flame-throated sunangel's call is "a repeated dry 'djit' or more gravelly 'drrt'."[7]
Status

The IUCN has assessed the flame-throated sunangel as being of Least Concern, although its population size and trend are not known.[1] The species is locally common but generally uncommon.[7]
References

BirdLife International (2016). "Little Sunangel Heliangelus micraster". IUCN Red List of Threatened Species. 2016: e.T22729181A95008989. doi:10.2305/IUCN.UK.2016-3.RLTS.T22729181A95008989.en. Retrieved 22 January 2022.
"Appendices | CITES". cites.org. Retrieved 2022-01-14.
Gill, F.; Donsker, D.; Rasmussen, P. (July 2021). "IOC World Bird List (v 12.1)". doi:10.14344/IOC.ML.11.2. Retrieved January 15, 2022.
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 May 27, 2021
Clements, J. F., T. S. Schulenberg, M. J. Iliff, S. M. Billerman, T. A. Fredericks, J. A. Gerbracht, D. Lepage, B. L. Sullivan, and C. L. Wood. 2021. The eBird/Clements checklist of Birds of the World: v2021. Downloaded from https://www.birds.cornell.edu/clementschecklist/download/ Retrieved August 25, 2021
Remsen, J. V., Jr., J. I. Areta, E. Bonaccorso, S. Claramunt, A. Jaramillo, D. F. Lane, J. F. Pacheco, M. B. Robbins, F. G. Stiles, and K. J. Zimmer. Version 24 August 2021. A classification of the bird species of South America. American Ornithological Society. https://www.museum.lsu.edu/~Remsen/SACCBaseline.htm retrieved August 24, 2021
Heynen, I. and P. F. D. Boesman (2020). Little Sunangel (Heliangelus micraster), 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.litsun1.01 retrieved January 21, 2022