Black-throated mango

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Black-throated mango
Anthracothorax nigricollis 1152.jpg
Male at Puerto Iguazú, Misiones Province, Argentina
Black-throated mango (Anthracothorax nigricollis) female.jpg
Female in Tobago
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: Anthracothorax
Species:
A. nigricollis
Binomial name
Anthracothorax nigricollis
(Vieillot, 1817)
Anthracothorax nigricollis map.svg

The black-throated mango (Anthracothorax nigricollis) is a species in subfamily Polytminae of the hummingbird family Trochilidae. It is found in Panama, in every mainland South American country except Chile, and in Trinidad and Tobago. [3] [4] [5]

Contents

Taxonomy and systematics

The black-throated mango, like many hummingbirds, bounced among several genera before settling in its present Anthracothorax. [6] As of early 2023, worldwide taxonomic systems assign two subspecies to it, the nominate A. n. nigricollis (Vieillot, 1817) and A. n. iridescens (Gould, 1861). Subspecies A. n. iridescens had previously been assigned to the green-breasted mango (A. prevostii). [3] [4] [7]

Description

The black-throated mango is 10.2 to 14 cm (4.0 to 5.5 in) long and weighs 6 to 9 g (0.21 to 0.32 oz). Both sexes of both subspecies have a slightly decurved black bill. Adult males of the nominate subspecies have a metallic bronze-green crown, nape, and upperparts. Their innermost pair of tail feathers are dusky bronze green and the outer four pairs are metallic magenta-rufous with dark blue edges and a violet sheen. Their wings are grayish brown. They have a black chin, throat, and middle of the chest with metallic bluish green beside it and to the vent. Their sides and flanks are bronzy green. Nominate females have metallic green on the crown, nape, and upperparts without the male's bronzy tone. Their innermost pair of tail feathers are dusky bronze green like the male's, but the outer four pairs are rufous with a wide purple base and whitish tips. They have a thin and ragged black chin and throat stripe with a white border. The rest of their underparts are green. Juveniles are somewhat similar to adult females but have a white chin, throat, and breast with a thin black central line. Some brown on the head and back feathers gives a barred appearance. Their lower back and rump feathers have dull cinnamon-buff tips. Juvenile females have some rusty or buff beside the white of the underparts, green undertail coverts, and a mostly dull carmine underside of the tail. Within the nominate subspecies, there are some differences in the shade of the upperparts' green, spanning from pure dark green to green with a copper or bronze tone. Subspecies A. n. iridescens is essentially the same as the nominate. [6]

Distribution and habitat

The nominate subspecies of the black-throated mango is found from western Panama into much of Colombia and Venezuela, the Guianas, eastern Ecuador and Peru, northern and eastern Bolivia, eastern Paraguay, far northern Argentina, most of Brazil, and on both Trinidad and Tobago. [3] [6] It has also occurred as a vagrant in Uruguay. [5] Subspecies A. n. iridescens is found in extreme southwestern Colombia, western Ecuador, and extreme northwestern Peru. [3] [7] [6]

The black-throated mango inhabits a variety of landscapes in the lowland tropics, most of them semi-open to open. These include gallery forests, shade coffee, and cacao plantations, the edges of dense forest, and parks and gardens in populated areas. In general, it is a bird of the lowlands but reaches 1,400 m (4,600 ft) in Venezuela, 1,700 m (5,600 ft) in Colombia, and 2,000 m (6,600 ft) in eastern Brazil. [6]

Behavior

Movement

The black-throated mango is generally sedentary though some populations apparently make some movements seasonally or in response to the availability of flowering plants. The eastern Brazilian population is reported to make a long-distance migration. Details of the various movements have not been defined. [6]

Feeding

The black-throated mango feeds on nectar, favoring the flowers of tall trees. Those of genera Erythrina , Eucalyptus , Mabea , Spirotheca , Tabebuia , and Spathodea are known sources. It also feeds on vines and shrubs of many genera, both native and introduced. Males defend feeding territories in trees but not as vigorously as some other hummingbirds. In addition to nectar, the species feeds on insects by hawking, mostly from a high perch but also much less frequently low down such as along roads or streams. It also gleans insects from foliage but less commonly than taking them by hawking. [6] [8] [9]

Breeding

The black-throated mango's breeding season varies across its range. It nests from December to July in Trinidad, between January and April in coastal Venezuela, in July and August in Amazonian Brazil, November to February in other parts of that country, and perhaps year-round in Colombia. The female builds a cup nest of soft plant material such as seed down and rootlets with lichen on the outside, all bound together with spider silk. Most are placed like a saddle in an exposed place such as leafless parts of trees and human-made substrates such as utility wires. The clutch size is two eggs. The incubation period is 16 to 18 days, fledging occurs 20 to 26 days after hatch, and young are independent about two weeks after fledging. The female alone incubates the eggs and provisions the nestlings. [6] [10]

A black-throated mango nest in Cuyabeno Faunistic Reserve, Ecuador was in a tree inhabited by Pseudomyrmex stinging ants. It is likely that the ants would deter predators, but it is not known whether the birds deliberately select such trees for nesting. [10]

Vocalization

The black-throated mango is not highly vocal. Males sing from trees, "rendered hsl-hsl-hsl-hsl-hsl-hsl-hsl". Its calls include twick or tiuck and a tsick. [6] [11]

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References

  1. BirdLife International (2021). "Black-throated Mango Anthracothorax nigricollis". IUCN Red List of Threatened Species . 2021: e.T22687130A167006442. doi: 10.2305/IUCN.UK.2021-3.RLTS.T22687130A167006442.en . Retrieved 3 February 2023.
  2. "Appendices | CITES". cites.org. Retrieved 14 January 2022.
  3. 1 2 3 4 Gill, F.; Donsker, D.; Rasmussen, P., eds. (January 2023). "Hummingbirds". IOC World Bird List. v 13.1. Retrieved 30 January 2023.
  4. 1 2 HBW and BirdLife International (2022) Handbook of the Birds of the World and BirdLife International digital checklist of the birds of the world. Version 7. Available at: http://datazone.birdlife.org/userfiles/file/Species/Taxonomy/HBW-BirdLife_Checklist_v7_Dec22.zip retrieved 13 December 2022
  5. 1 2 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. 30 January 2023. Species Lists of Birds for South American Countries and Territories. https://www.museum.lsu.edu/~Remsen/SACCCountryLists.htm retrieved 30 January 2023
  6. 1 2 3 4 5 6 7 8 9 Greeney, H. F., K.L. Schuchmann, and G. M. Kirwan (2022). Black-throated Mango (Anthracothorax nigricollis), version 1.1. In Birds of the World (B. K. Keeney, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.bltman1.01.1 retrieved 3 February 2023
  7. 1 2 Clements, J. F., T. S. Schulenberg, M. J. Iliff, T. A. Fredericks, J. A. Gerbracht, D. Lepage, S. M. Billerman, B. L. Sullivan, and C. L. Wood. 2022. The eBird/Clements checklist of birds of the world: v2022. Downloaded from https://www.birds.cornell.edu/clementschecklist/download/ retrieved 10 November 2022
  8. Baza Mendonça, Luciana & dos Anjos, Luiz (2005): Beija-flores (Aves, Trochilidae) e seus recursos florais em uma área urbana do Sul do Brasil [Hummingbirds (Aves, Trochilidae) and their flowers in an urban area of southern Brazil]. [Portuguese with English abstract] Revista Brasileira de Zoologia22(1): 51–59. doi : 10.1590/S0101-81752005000100007 PDF fulltext
  9. "Anthracothorax nigricollis (Black-throated Mango)" (PDF). Sta.uwi.edu. Retrieved 9 April 2022.
  10. 1 2 Greeney, Harold F. & Merino M., Paúl A. (2006): Notes on breeding birds from the Cuyabeno Faunistic Reserve in northeastern Ecuador. Boletín de la Sociedad Antioqueña de Ornitología16(2): 46–57. PDF fulltext
  11. van Perlo, Ber (2009). A Field Guide to the Birds of Brazil. New York: Oxford University Press. p. 253. ISBN   978-0-19-530155-7.

Further reading