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Choco Woodpecker Dryobates chocoensis Scientific name definitions

Hans Winkler and David Christie
Version: 1.0 — Published March 4, 2020
Text last updated August 30, 2017

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Introduction

This poorly known species is considered “near threatened” in its restricted range due to deforestation and subsequent habitat loss. It is seldom seen and the population is thought to be declining (BirdLife International). Choco Woodpeckers inhabit humid and wet forests where pairs sometimes join mixed-species flocks. Other life history details are currently lacking.

Field Identification

15–16 cm; c. 30 g. Male has buffish forehead, blackish crown with broad red feather tips, dull golden nape and upper neck side; brownish-buff lores and side of head , obscurely streaked darker at rear, often some pale tips (can appear variegated); pale buffish chin and upper throat spotted or barred darker, sometimes almost fully dark; bronzy golden-green above , mantle and scapulars often suffused red, obscure pale yellow shaft streaks, rump and uppertail-coverts barred olive and yellowish; wing-coverts with small, obscure pale yellow spots, mostly on medians; dark brown flight-feathers edged olive-yellow, barred buffish, tertials sometimes tinged red; uppertail dark brown, barred yellowish, bars most pronounced on outer tail; underparts barred olive and whitish-buff, underwing barred pale and dark; rather short bill straight or slightly curved, broad across nostrils, dark, paler lower mandible; iris red-brown to brown; legs dark olive, tinged grey or green. Distinguished from very similar V. cassini by slightly brighter upperparts, dark bars below less blackish; from V. affinis by generally somewhat smaller size, slightly darker coloration, and less red on upperparts. Female differs from male in having crown dark olive-brown, becoming yellow-streaked on nape. Juvenile as adult but looser-plumaged, with streaked face side, both sexes with red-tipped crown feathers, on female confined mostly to central area.

Systematics History

Recent molecular study indicated that this species occupied a basal but uncertain position in the genus (1). In the past was often treated as conspecific with V. cassini or V. affinis, but differs in plumage details, in size and in habitat preferences, apparently also vocally, and is separated from both by Andes chain. Monotypic.

Subspecies

Monotypic.

Distribution

W Colombia (W Antioquia S to Nariño) and NW Ecuador (S to NW Pichincha).

Habitat

Humid to very wet forest and forest edge in foothills, less in lowlands; recorded at up to 1000 m, mostly below 700 m. Generally prefers wetter forest than e.g. V. affinis.

Movement

Presumably resident.

Diet and Foraging

Details not known; diet presumably as for V. affinis. Pair seen foraging with mixed-species party in primary forest in Jul and Jan in SW Colombia (Nariño).

Sounds and Vocal Behavior

Details apparently not documented, but said to differ to some extent from V. cassini and V. affinis.

Breeding

No information.
Not globally threatened. Considered Near-threatened. Restricted-range species: present in Chocó EBA. Little-known species which seems to be rare throughout its small range. Rare in Colombia; rare to uncommon and local in Ecuador, with most records in Esmeraldas. Occurs in El Pangán Reserve in Nariño, Colombia; occurs in 2 protected areas in Ecuador, in Cotocachi-Cayapas Ecological Reserve and at Bilsa. Habitat loss and degradation are the most serious threats. Large-scale logging concessions, accompanied by human settlement following road construction, have already resulted in more than 40% of Chocó forest being lost or severely degraded; forest destruction continuing at accelerating rate, and most severe in altitudinal range occupied by this species. Mining activities, coca and palm cultivation and livestock grazing combine to intensify the pressure caused by intensive logging. Without appropriate measures to conserve its habitats, this species’ conservation status could become Vulnerable.
Distribution of the Choco Woodpecker - Range Map
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  • Year-round
  • Migration
  • Breeding
  • Non-Breeding
Distribution of the Choco Woodpecker

Recommended Citation

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
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