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Great Elaenia Elaenia dayi Scientific name definitions

Peter Hosner and Guy M. Kirwan
Version: 1.0 — Published March 4, 2020
Text last updated July 5, 2016

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Introduction

Great Elaenia is a poorly known flycatcher restricted to isolated highlands of Venezuela. Found on tepuis in southern Venezuela, it inhabits edge and scrub habitats between 1500 and 2600 meters in elevation. The species is very large for the genus Elaenia, dark gray-brown above with a black crown, thin white eye ring, two white wing bars, olive-gray underparts and paler yellow on the center of the belly. Great Elaenia has no similar species and is relatively easy to identify since it is the size of a Myiarchus flycatcher but has the structure of an Elaenia.

Field Identification

20 cm; 29–40 g (race auyantepui) (1). Large, dark, long-tailed elaenia with very rounded head, at most only slight crest, and no coronal patch. Plumage is dark sooty brown above, blacker on crown, narrow broken whitish eyering; two dull whitish wingbars, narrow whitish edging on tertials; tail dusky; mostly dull olive-grey below, throat slightly paler, becoming pale yellowish on belly; iris dark brown; bill small, black, pale base of lower mandible; legs black. Sexes alike, female slightly smaller. Juvenile undescribed. Race tyleri is notably larger than nominate; auyantepui is smaller and darker than previous, grey suffusion from chin to breast, duller yellow below, mixed with greyish on breast.

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.

Apparently most closely related to E. obscura (with sordida) (2). Name dayi dates to Feb and tyleri to Oct, giving former priority. Three subspecies recognized.

Subspecies


SUBSPECIES

Elaenia dayi tyleri Scientific name definitions

Distribution

mountains of SC Venezuela in Amazonas (cerros Parú, Huachamacari, Marahuaca, Duida) and SW Bolívar (Meseta de Jaua).

SUBSPECIES

Elaenia dayi auyantepui Scientific name definitions

Distribution

Auyán-tepui, in SE Bolívar.

SUBSPECIES

Elaenia dayi dayi Scientific name definitions

Distribution

mountains and Gran Sabana of SE Venezuela (cerros Ptari-tepui, Chimantá-tepui, Kukenam, Roraima) and extreme adjacent Brazil (3); probably also in adjacent Guyana.

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

Forest and humid scrub, including humid forest, open forest, stunted savanna woodland, mossy Bonnetia forest and scrubby forest edge, on slopes and summits at 300–2600 m; most records above 1800 m.

Movement

Resident.

Diet and Foraging

Insects, also variety of small fruits. Solitary or in pairs. Perches upright in middle to upper parts of trees, sometimes on exposed branches, sometimes within canopy or shrubbery. Perch-gleans and hover-gleans in foliage.

Sounds and Vocal Behavior

Peculiar, loud “squee’ch’ch’ch’cheet’cheet”, first note high, middle notes rattling.

Breeding

Unrecorded, but birds collected on Auyán-tepui in Feb were in breeding condition (1).

Not globally threatened (Least Concern). Restricted-range species: present in Tepuis EBA. Rare to fairly common; more numerous at higher elevations, and most common during rainy season on Cerro Roraima (above 2000 m). Most sites lie within national parks. The tepuis within its range are generally inaccessible, and therefore not overly affected by human disturbance, but vegetation is especially sensitive to fire and other disturbances. Gold-prospecting and uncontrolled tourism have recently had severe local impacts.
Distribution of the Great Elaenia - Range Map
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  • Migration
  • Breeding
  • Non-Breeding
Distribution of the Great Elaenia

Recommended Citation

Hosner, P. and G. M. Kirwan (2020). Great Elaenia (Elaenia dayi), 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.greela1.01
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