Black jacobin

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Black jacobin
Florisuga fusca -Reserva Guainumbi, Sao Luis do Paraitinga, Sao Paulo, Brasil-8.jpg
Adult in Reserva Guainumbi, São Luis do Paraitinga, São Paulo, Brazil
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: Florisuga
Species:
F. fusca
Binomial name
Florisuga fusca
(Vieillot, 1817)
Florisuga fusca map.svg
Synonyms

Melanotrochilus fuscus (Vieillot, 1817)

The black jacobin (Florisuga fusca) is a species of hummingbird in the family Trochilidae. It is found in Argentina, Brazil, Paraguay, and Uruguay. [3]

Contents

Taxonomy and systematics

The black jacobin was traditionally placed in the monotypic genus Melanotrochilus, but voice, anatomy, and reproductive behavior place it in Florisuga with the white-necked jacobin. The species is monotypic. [4] [5] [3]

Immature Florisuga fusca-7.jpg
Immature

Description

The black jacobin is 12 to 13 cm (4.7 to 5.1 in) long. Males weigh about 9 g (0.32 oz) and females 8 g (0.28 oz). Adults of both sexes are mostly black, with a bronzy-olive lower back and uppertail- and wing-coverts. The flanks are white, the inner rectrices black, and the outer rectrices white with black tips. Juveniles are dark except for a wide cinnamon band on the center and sides of the throat and a white belly and outer rectrices. [5]

Distribution and habitat

The black jacobin is found in southeastern Brazil, approximately from Bahia south through Rio Grande do Sul and into eastern Uruguay, and separately in southeastern Paraguay, northeastern Argentina, and adjoining Brazil. There are also scattered records from sites outside its primary range. It mostly inhabits woodlands, gardens, and coffee and cacao plantations with tall trees. In elevation it ranges from sea level to 1,400 m (4,600 ft). [5]

Behavior

Movement

The black jacobin is migratory, but the pattern is not well understood. The trend is for southward movement for the austral winter, though there are also winter records to the northwest in the cerrado biome of south-central Brazil. [5]

Feeding

The black jacobin forages at all levels of its habitat. It feeds on nectar at the flowers of many native and introduced trees and shrubs and from bromeliads as well. The species is highly territorial and defends food sources against conspecifics and other species. However, "congregations" of 50 or more have been documented in July feeding on patches of Dombeya wallichii , an introduced shrub. In addition to nectar, the black jacobin takes small insects on the wing and from leaves and spider webs. [5]

Breeding

The black jacobin breeds between July and May, and two broods per year are common. Its nest is a cup made of fine plant fibers and cobweb, placed on the mid-rib of a large horizontal leaf, typically between 1 and 4 m (3.3 and 13 ft) up in a tree or shrub. The clutch size is two eggs. Females use a display flight to distract predators. [5]

Vocalization

The black jacobin's song is "a series of high-pitched hissing notes above 10 kHz, 'szee..szee....szee..szee..szee....szee...'." Its calls include "a short 'tsik' or 'chik', and a short trill 'tr-r-r'." [5]

Status

The IUCN has assessed the black jacobin as being of Least Concern, though its population has not been quantified and its trend is not known. [1] It is common in Brazil and occurs in many protected areas. "Ready occupation of man-made habitats suggests that habitat loss is unlikely to be a problem." [5]

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References

  1. 1 2 BirdLife International (2016). "Black Jacobin Florisuga fusca". IUCN Red List of Threatened Species . 2016. Retrieved 13 November 2021.
  2. ↑ "Appendices | CITES". cites.org. Retrieved 2022-01-14.
  3. 1 2 Gill, F.; Donsker, D.; Rasmussen, P. (July 2021). "IOC World Bird List (v 11.2)" . Retrieved July 14, 2021.
  4. ↑ 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
  5. 1 2 3 4 5 6 7 8 Schuchmann, K.L., G. M. Kirwan, and P. F. D. Boesman (2020). Black Jacobin (Florisuga fusca), 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.blkjac1.01 retrieved November 13, 2021
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