Crimson topaz

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Crimson topaz
Crimson Topaz (Topaza pella).jpg
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: Topaza
Species:
T. pella
Binomial name
Topaza pella
Topaza pella map.svg
Distribution of Topaza pella
Synonyms

Trochilus pella Linnaeus, 1758

The crimson topaz (Topaza pella) is a species of hummingbird in the family Trochilidae. It is found in Brazil, French Guiana, Guyana, Suriname, and Venezuela. [3] [4]

Contents

Taxonomy and systematics

The crimson topaz was formally described by the Swedish naturalist Carl Linnaeus in 1758 in the tenth edition of his Systema Naturae under the binomial name Trochilus pella. [5] Linnaeus based his description on the "Long-tail'd red huming-bird" that had been described and illustrated by the English naturalist George Edwards in 1743 from a specimen owned by Charles Lennox, the Duke of Richmond. The specimen had been collected in Suriname. [6] The specific epithet is from the Latin pellus meaning "dark-colored". [7] The crimson topaz is now placed in the genus Topaza that was introduced by George Robert Gray in 1840 with the crimson topaz as the type species. [8] [3]

Three subspecies are recognised: [3]

The crimson topaz has been treated as conspecific with the fiery topaz (T. pyra) but currently (2021) the two are considered to form a superspecies. [9] [10]

Museum specimen Trochilidae - Topaza pella.JPG
Museum specimen

Description

The male crimson topaz is 21 to 23 cm (8.3 to 9.1 in) long including the 5 cm (2.0 in) bill and 8.6 to 12 cm (3.4 to 4.7 in) tail, and weighs 11 to 18 g (0.39 to 0.63 oz). Females are 13 to 14 cm (5.1 to 5.5 in) long and weigh 9 to 12.5 g (0.32 to 0.44 oz). It may be the second largest species of hummingbird after the giant hummingbird, rivaled only by its cousin, the fiery topaz. [10] [11]

Male and female crimson topaz have different plumages. Both have a straight to slightly decurved bill. The male's head, face, and the sides of the neck are velvety black. Its back is iridescent crimson to gold on the uppertail coverts. The central tail feathers are bronzy green and the outer ones chestnut; two of the latter are elongated and crossed. The throat is golden green surrounded by a black band and the underparts bright red. The wings are brown. The female's head and back are dark green and its underparts a lighter green with golden green inclusions; the throat is green with crimson inclusions. The central tail feathers are bronzy, the middle pair violet, and the outer pair chestnut, and none are elongated like the male's. [10]

Distribution and habitat

The subspecies of crimson topaz are distributed thus: [3] [10]

The species mainly inhabits inland rainforest in lowlands and foothills at elevations up to 500 m (1,600 ft). It frequents granite outcrops and also gallery forest along small waterways. [10]

Behavior

Movement

The crimson topaz is mostly sedentary during the breeding season but at other times appears to roam elsewhere seeking flowering plants. [10]

Feeding

Male crimson topaz defend feeding territories. The species feeds on nectar of flowering trees, mainly in the canopy of the forest, and also the flowers of vines and epiphytes. It has been observed feeding in flowering shrubs near the ground in Suriname. It also captures small insects in the air, both above the canopy and low along streams. [10]

Breeding

The crimson topaz's breeding season varies across its range; it has two seasons in the Guianas. Males make display flights that show the white feathers on their legs. The female builds a cup nest of Ceiba seed fibers and spider web, often on vertical branches or in vines, and often over water. The clutch size is two eggs. [10]

Vocalization

The crimson topaz's song is an "irregular series of chattering 'chip' notes given almost continually (other than breaks to feed) throughout the day." It often sings from a perch in the canopy and may make short flights out and back to the same perch between songs. [10]

Status

The IUCN has assessed the crimson topaz as being of Least Concern, though its population has not been enumerated and is believed to be decreasing. [1] It is considered rare to locally common, but may be undercounted because of its treetop habits. It occurs in several protected areas and continues to be discovered in "gaps" in its range. [10]

Related Research Articles

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References

  1. 1 2 BirdLife International (2016). "Crimson Topaz Topaza pella". IUCN Red List of Threatened Species . 2016. Retrieved 12 November 2021.
  2. "Appendices | CITES". cites.org. Retrieved 2022-01-14.
  3. 1 2 3 4 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. Species Lists of Birds for South American Countries and Territories. https://www.museum.lsu.edu/~Remsen/SACCCountryLists.htm retrieved August 24, 2021
  5. Linnaeus, Carl (1758). Systema Naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis (in Latin). Vol. 1 (10th ed.). Holmiae (Stockholm): Laurentii Salvii. p. 119.
  6. Edwards, George (1743). A Natural History of Uncommon Birds. Vol. Part 1. London: Printed for the author at the College of Physicians. p. 32, Plate 32.
  7. Jobling, James A. (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. p. 295. ISBN   978-1-4081-2501-4.
  8. Gray, George Robert (1840). A List of the Genera of Birds : with an Indication of the Typical Species of Each Genus. London: R. and J.E. Taylor. p. 13.
  9. 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
  10. 1 2 3 4 5 6 7 8 9 10 Schuchmann, K.L., G. M. Kirwan, and P. F. D. Boesman (2020). Crimson Topaz (Topaza pella), 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.critop1.01 retrieved November 12, 2021
  11. Dunning, John B. Jr., ed. (2008). CRC Handbook of Avian Body Masses (2nd ed.). CRC Press. ISBN   978-1-4200-6444-5.

Additional reading