Chocó woodpecker

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Chocó woodpecker
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Piciformes
Family: Picidae
Genus: Veniliornis
Species:
V. chocoensis
Binomial name
Veniliornis chocoensis
Todd, 1919 [2]
Veniliornis chocoensis map.svg
Synonyms

Dryobates chocoensis

The Choco woodpecker (Veniliornis chocoensis) is a Near Threatened species of bird in subfamily Picinae of the woodpecker family Picidae. It is found in Colombia and Ecuador. [3] [1]

Contents

Taxonomy and systematics

The International Ornithological Committee and BirdLife International's Handbook of the Birds of the World place the Choco woodpecker in genus Veniliornis . [3] [4] However, starting in 2018, the American Ornithological Society and the Clements taxonomy moved all species of genus Veniliornis into genus Dryobates . All of these systems use the English name "Choco" rather than "Chocó". [5] [6] [7]

The Choco woodpecker has in the past been treated as a subspecies of both the golden-collared woodpecker (V. (or D.) cassini) and then the red-stained woodpecker (V. (or D.) affinis). Since the late 1900s it has progressively been accepted as a species by major taxonomic systems. [6]

The Choco woodpecker is monotypic. [3]

Description

The Choco woodpecker is 15 to 16 cm (5.9 to 6.3 in) long and weighs about 30 g (1.1 oz). Males and females have the same plumage except on their heads. Males have a red crown with black feather bases that show through. The female has a dark olive-brown crown. Adults of both sexes have a mostly brownish buff face with darker streaks and a dull golden nape and hindneck. Their upperparts are mostly bronzy golden-green with some red wash, pale yellow streaks, and olive and yellowish barring on the rump and uppertail coverts. Their flight feathers are dark brown with olive-yellow edges and buffish bars. Their tail is dark brown with yellowish bars on most feathers. Their underparts are barred with olive and whitish buff. The iris is red-brown to brown, the shortish beak dark with a paler mandible, and the legs are dark olive with a green or gray tinge. Juveniles resemble adults with a streakier face; both sexes have some red on the crown, the male more than the female. [8]

Distribution and habitat

The Choco woodpecker is found in the Chocó Biogeographic Region from Colombia's Antioquia Department south to Pichincha Province in Ecuador. It inhabits the interior and edges of humid to very wet forest, up to an elevation of 1,000 m (3,300 ft) but usually below 700 m (2,300 ft). [8]

Behavior

Movement

The Choco woodpecker is believed to be a year-round resident throughout its range. [8]

Feeding

Almost nothing is known about the Choco woodpecker's feeding behavior, but a pair was observed with a mixed species foraging flock in primary forest. Details of its diet are not known but are assumed to be similar to those of the red-stained woodpecker (which see here). [8]

Breeding

Nothing is known about the Choco woodpecker's breeding biology. [8]

Vocalization

The Choco woodpecker's vocalizations include sharp pik notes, softer quip notes, wicka-wicka notes, and a gentle rattle. [9]

Status

The IUCN has assessed the Choco woodpecker as Near Threatened. It has a somewhat limited range and an unknown population size that is believed to be decreasing. "Currently [1995], intensive logging, human settlement, cattle-grazing, mining and coca and palm cultivation pose threats, with deforestation most severe in its altitudinal range." [1] It "seems to be rare throughout its small range" but does occur in a few protected areas. "Without appropriate measures to conserve its habitats, this species’ conservation status could become Vulnerable." [8]

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References

  1. 1 2 3 BirdLife International (2016). "Choco Woodpecker Veniliornis chocoensis". IUCN Red List of Threatened Species . 2016: e.T22681215A92897764. doi: 10.2305/IUCN.UK.2016-3.RLTS.T22681215A92897764.en . Retrieved 25 January 2023.
  2. Todd, W. E. Clyde (1919). "Descriptions of Apparently New Colombian Birds". Proceedings of the Biological Society of Washington. 32: 116.
  3. 1 2 3 Gill, F.; Donsker, D.; Rasmussen, P., eds. (August 2022). "Woodpeckers". IOC World Bird List. v 12.2. Retrieved 9 January 2023.
  4. 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 December 13, 2022
  5. R. Terry Chesser, Kevin J. Burns, Carla Cicero, Jon L. Dunn, Andrew W. Kratter, Irby J. Lovette, Pamela C. Rasmussen, J. V. Remsen, Jr., Douglas F. Stotz, Benjamin M. Winger, and Kevin Winker. "Fifty-ninth supplement to the American Ornithological Society’s Check-list of North American Birds". The Auk 2018, vol. 135:798-813 retrieved December 13, 2022
  6. 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. Version 24 July 2022. A classification of the bird species of South America. American Ornithological Society. https://www.museum.lsu.edu/~Remsen/SACCBaseline.htm retrieved July 24, 2022
  7. 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 November 10, 2022
  8. 1 2 3 4 5 6 Winkler, H. and D. A. Christie (2020). Choco Woodpecker (Dryobates chocoensis), 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.chowoo1.01 retrieved January 25, 2023
  9. Gorman, Gerard (2014). Woodpeckers of the World: The Complete Guide. A&C Black. p. 313. ISBN   978-1-4081-4717-7.