- Pygmy Palm Swift
 - Pygmy Palm Swift
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Pygmy Palm Swift Tachornis furcata Scientific name definitions

Philip Chantler, Peter F. D. Boesman, and Eduardo de Juana
Version: 1.0 — Published March 4, 2020
Text last updated February 17, 2015

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Introduction

The Pygmy Swift is a tiny brown-and-white swift with a deeply forked tail. There are two subspecies described within the Pygmy Swift's limited range in northern Venezuela; T. f. furcata and T. f. nigrodorsalis. Mainly found in tropical, lowland, evergreen forest and second-growth scrub, the Pygmy Swift spends most of the day on the wing in search of flying insects. Like the closely related Antillean Palm-swift, the Pygmy Swift is often found using royal palms for nesting and roosting. Despite its restricted range, the Pygmy Swift's population is believed to be stable, and consequently has not been placed on any threatened species lists; however, better study of the population's structure and stability is needed.

Field Identification

10 cm. Tiny swift with long thin wings and long, deeply forked tail; uniformly brown upperparts; whitish throat, separated from whitish mid-belly by brown breast band with rest of underparts mid-brown. Race nigrodorsalis has blacker upperparts and whiter throat.

Systematics History

Editor's Note: This article requires further editing work to merge existing content into the appropriate Subspecies sections. Please bear with us while this update takes place.

Previously placed in a monospecific genus, Micropanyptila; alternatively, has on occasion been separated in Reinarda with T. squamata. Two subspecies recognized.

Subspecies


SUBSPECIES

Tachornis furcata furcata Scientific name definitions

Distribution

NE Colombia (Norte de Santander) and adjacent NW Venezuela (S Maracaibo Basin N to Trujillo).

SUBSPECIES

Tachornis furcata nigrodorsalis Scientific name definitions

Distribution

NW Venezuela (W Maracaibo Basin).

Distribution

Editor's Note: Additional distribution information for this taxon can be found in the 'Subspecies' article above. In the future we will develop a range-wide distribution article.

Habitat

Main habitats defined as tropical lowland evergreen forest, secondary forest and ­second-growth scrub. Habitats include primary and secondary forest, cultivated land and open ­areas with scattered trees, though must contain palms on which species depends for nest-sites.

Movement

Believed resident.

Diet and Foraging

Forages in small, highly active flocks.

Sounds and Vocal Behavior

Calls around colony a buzzy “bee-beez-beez-beez-be-be-be”, accelerating and trailing off (1).

Breeding

Pair collected at nest-site in late Jul, Catatumbo lowlands, Colombia (2). In Venezuela, nests with young recorded in Feb (1) and Jul, and also a number of active nests in Jan (3). Nests are bag-like structures, made of feathers glued together with salivary cement and attached near the central rib on the underside of hanging frond of a palm tree (including Roystonea sp., Copernicia sp. and Cocus nucifera), the entrance to the nest chamber being from below, along the central rib of the palm frond (3).

Not globally threatened (Least Concern). Restricted-range species: present in Caribbean Colombia and Venezuela EBA. Regularly encountered in Jan 1995 throughout the SE Maracaibo Basin in Venezuela, in a variety of habitats including cleared pastures, cropland, open forest and rural towns; as it was recorded at nearly all previously known sites and many additional ones, often in close proximity to human activities and potential sources of disturbance, it appears  that it is not a rare bird and currently does not require special status or conservation efforts (4).

Distribution of the Pygmy Swift - Range Map
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  • Year-round
  • Migration
  • Breeding
  • Non-Breeding
Distribution of the Pygmy Swift

Recommended Citation

Chantler, P., P. F. D. Boesman, and E. de Juana (2020). Pygmy Palm Swift (Tachornis furcata), 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.pygswi1.01
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