- Green-throated Euphonia
 - Green-throated Euphonia
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Green-throated Euphonia Euphonia chalybea Scientific name definitions

Steven Hilty
Version: 1.0 — Published March 4, 2020
Text last updated January 1, 2011

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Introduction

The Green-throated Euphonia is an Atlantic Forest endemic, restricted to south-east Brazil, eastern Paraguay and north-east Argentina. Males are easily distinguished from the several coexisting yellowish-bellied euphonias by the restricted green on the throat and the petroleum-green dorsum. It is more common in well preserved forests. It is considered Near-Threatened, which seems reasonable in view of how readily it disappears from disturbed areas. The sweet and varied song and the harsh calls (the later uttered by both members of the pair) are the best indicators of its presence. Much as other congeners it is frequently encountered in mixed species flocks, especially during winter.

Field Identification

11 cm; 18–20 g. Relatively large euphonia with noticeably thick bill. Male has small yellow frontal band, lores blackish; rest of head and upperparts, including upper­wing-coverts, glossy dark greenish-blue; uppertail dark greenish blue, flight-feathers dusky, secondaries and tertials edged dark greenish-blue; chin and most of throat glossy dark greenish-blue, lower throat and rest of underparts bright yellow; undertail entirely dark dusky grey (no white); iris dark brown; bill bluish-grey with blackish tip; legs dark grey. Female is entirely olive above; side of head, side of neck and underparts mostly pale grey; chin, sides, flanks and undertail-coverts olive-yellow. Juvenile male resembles female.

Systematics History

Monotypic.

Subspecies

Monotypic.

Distribution

SE Brazil (from Rio de Janeiro and extreme S Minas Gerais (1) S to C Rio Grande do Sul) and adjacent E Paraguay (Canindeyú S to Guairá and Itapúa) and NE Argentina (Misiones and Corrientes).

Habitat

Primarily humid forest, wooded borders, tall second growth, and clearings with large trees. Lowlands to c. 900 m.

Movement

Resident.

Diet and Foraging

Fruits; also, insects, including caterpillars, and spiders (Araneae). Reported to favour epiphytic fruits, including those of Rhipsalis cactus; pokeweed berries (Phytolacca) and fruits of Abutilon also recorded. Found in pairs and in small monospecific groups; regularly with mixed-species flocks containing other tanagers and other birds along forest borders, and occurs also with feeding groups at fruiting trees. Stays mostly well up in trees. Searches branches for small food items. Otherwise, not especially well known.

Sounds and Vocal Behavior

Call a short series, “chik chik chik chik chik”, duration c. 1 second. Song a squeaky and raspy series of warbling notes, varying from moderate to high in pitch, delivered rapidly and generally without any mimicry.

Breeding

Breeding recorded in Oct in Brazil (Paraná). Nest a rounded structure of plant stems and leaves with side entrance, much as those of congeners; one nest in Brazil was placed among epiphytes c. 15 m up on large branch, one in Paraguay among orchids and epiphytes on limb near a house. Eggs believed to have been of this species were yellowish with red-brown spots. No other information.

Not globally threatened. Currently considered Near Threatened. Fairly common locally in SE Brazil Atlantic Forests from Rio de Janeiro S to Rio Grande do Sul. In E Paraguay recently found in Canindeyú, Alto Paraná, Caazapá, and Itapuá; and in NE Argentina recent records from Misiones and Corrientes. Much of area in which it lives is heavily deforested, and this species is believed to be declining. Occurs in numerous parks and other reserves, including Iguazú National Park (Argentina) and Iguaçu, Itatiaia and Serra da Bocainá National Parks (Brazil). Because of high rates of deforestation, unprotected forest and woodland sites remaining within this species’ range are likely to be at risk in the near term.

Distribution of the Green-throated Euphonia - Range Map
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Distribution of the Green-throated Euphonia

Recommended Citation

Hilty, S. (2020). Green-throated Euphonia (Euphonia chalybea), 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.gnteup1.01
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