Volcano junco

Last updated

Volcano junco
Volcano Junco.jpg
In Cerro de la Muerte, Costa Rica
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Passerellidae
Genus: Junco
Species:
J. vulcani
Binomial name
Junco vulcani
(Boucard, 1878)
Junco vulcani map.svg

The volcano junco (Junco vulcani) is a New World sparrow endemic to the Talamancan montane forests of Costa Rica and western Panama.

This junco breeds above the timberline, typically at altitudes above 3,000 m, but there is an isolated population at 2,100 m on the Caribbean slope of Costa Rica and forest clearance on Cerro de la Muerte has allowed this species to descend to 2,600 m. The habitat is open grassy or brushy areas with some stunted scrubs. The nest is a neat, lined cup constructed on the ground under a log, bush or rock, or in a cavity on a vegetated bank. The female lays two brown-spotted pale blue eggs.

The volcano junco is on average 16 cm long and weighs 28 g. The adult has brown upperparts with dark streaking especially on the back. The wings and tail feathers are dark fringed. The underparts are grey. The sides of the head are grey with a black mask through the eye, a yellow iris, and a pink bill and legs. Young birds are brighter brown above with blacker streaking, and have buff-grey underparts.

Volcano junco calls include a thin tseee or a clearer wheew. The song is a mixture of squeaks and buzzes; k’chew chu k’wee chip chip chueee.

The volcano junco feeds on the ground on seeds, fallen berries, insects and spiders. It runs and hops, but flies only for short distances.

Related Research Articles

Gray-headed kite Species of bird

The gray-headed kite is a raptor found in open woodland and swamp forests. It shares the genus Leptodon with the extremely rare white-collared kite. It breeds from eastern Mexico and Trinidad south to Peru, Bolivia, Brazil and northern Argentina.

Buffy tuftedcheek Species of bird

The buffy tuftedcheek or Lawrence's tuftedcheek is a passerine bird in the ovenbird family, which breeds in the tropical New World in Costa Rica, western Panama and the Andes of Colombia and Ecuador. It is sometimes considered conspecific with the streaked tuftedcheek, P. boissonneautii, of South America. Birds from Colombia and Ecuador are sometimes considered a separate species, the Pacific tuftedcheek(P. johnsoni).

Spotted wood quail Species of bird

The spotted wood quail is a small ground-dwelling bird in the New World quail family. It is a resident breeder in the mountains of Central America from southern Mexico to western Panama.

Long-tailed silky-flycatcher Species of bird

The long-tailed silky-flycatcher is a passerine bird which occurs only in the mountains of Costa Rica and western Panama, usually from 1,850 m altitude to the timberline. It is a thrush-sized species weighing about 37 g. The silky-flycatchers are related to waxwings, and like that group have soft silky plumage.

Black-billed nightingale-thrush Species of bird

The black-billed nightingale-thrush is a small thrush endemic to the highlands of Costa Rica and western Panama. Its position in the genus Catharus is somewhat equivocal, but it is apparently closer to the hermit thrush than to the other nightingale-thrushes except the russet nightingale-thrush and/or the ruddy-capped nightingale-thrush.

Sooty thrush Species of bird

The sooty thrush is a large thrush endemic to the highlands of Costa Rica and western Panama. It was formerly known as the sooty robin.

Mountain thrush Species of bird

The mountain thrush is a large thrush which is found in Central America. It was formerly known as the mountain robin. Some authorities refer to it as the American mountain thrush to differentiate it from the Abyssinian thrush, known in their taxonomy as the African mountain thrush.

Sooty-capped bush tanager Species of bird

The sooty-capped bush tanager or sooty-capped chlorospingus is a small passerine bird traditionally placed in the family Thraupidae, but now viewed closer to Arremonops in the Passerellidae. This bird is an endemic resident breeder in the highlands of Costa Rica and western Panama.

White-whiskered puffbird Species of bird

The white-whiskered puffbird, also called the white-whiskered soft-wing or brown puffbird, is a near-passerine bird in the family Bucconidae, the puffbirds, nunlets, and nunbirds. It is found from southeastern Mexico through Central America, Colombia, and Ecuador into Peru.

White-breasted wood wren Species of bird

The white-breasted wood wren is a small songbird of the wren family. It is a resident breeding species from central Mexico to northeastern Peru and Suriname.

White-eared ground sparrow Species of bird

The white-eared ground sparrow is a large American sparrow which breeds in a small range of Central America at middle altitudes from southern Mexico and Guatemala to northern Costa Rica. The species range is on the Pacific side of Central America, and Belize and Honduras are not in its normal range.

Stripe-headed sparrow Species of bird

The stripe-headed sparrow is an American sparrow which breeds from Pacific coastal south-western Mexico, including the transverse ranges, Cordillera Neovolcanica to Pacific coastal northern Costa Rica.

Yellow-thighed brushfinch Species of bird

The yellow-thighed brushfinch is a passerine bird which is endemic to the highlands of Costa Rica and western Panama. Despite its name, it is not a true finch, but rather a member of the family Passerellidae, which also includes American sparrows, juncos and towhees.

Large-footed finch Species of bird

The large-footed finch is a passerine bird endemic to the highlands of Costa Rica and western Panama. Despite its name, it is not a true finch, but rather a member of the large family Passerellidae, which also includes American sparrows, juncos and towhees. It is the only member of the genus Pezopetes.

Costa Rican páramo

The Costa Rican páramo, also known as the Talamanca páramo, is a natural region of montane grassland and shrubland of Costa Rica and western Panama.

Lanceolated monklet Species of bird

The lanceolated monklet is a species of near-passerine bird in the family Bucconidae, the puffbirds, nunlets, and nunbirds. It is found in Bolivia, Brazil, Colombia, Costa Rica, Ecuador, Panama, and Peru.

Grey-breasted wood wren Species of bird

The grey-breasted wood wren is a species of bird in the family Troglodytidae. It is found from Mexico to Bolivia.

Rosy thrush-tanager Species of bird

The rosy thrush-tanager or rose-breasted thrush-tanager, is a species of bird in the currently monotypic genus Rhodinocichla. It was formerly assigned to the family Thraupidae and more recently viewed as being of uncertain placement; a 2015 molecular study places it closest to the Calcariidae. Found in Colombia, Costa Rica, Mexico, Panama, and Venezuela, its natural habitats are subtropical or tropical dry forests, subtropical or tropical moist lowland forests, and heavily degraded former forest.

Emerald tanager Species of bird from South America

The emerald tanager is a species of bird in the tanager family Thraupidae. It is found in Colombia, Costa Rica, Ecuador, and Panama. Described by the English ornithologists PL Sclater and Osbert Salvin in 1869, it is a medium-sized species that has a length of 10.6–13 cm (4.2–5.1 in) and a mass of 18–20.5 g (0.63–0.72 oz). It can be identified by its bright green plumage, with black streaking on the back and wings, and a black auricular patch and beak. It also has yellow on the crown and rump. The species shows slight sexual dimorphism, with the females being duller and having yellow-green in place of yellow on the head.

Cabaniss ground sparrow Species of bird

Cabanis's ground sparrow or Costa Rican ground sparrow(Melozone cabanisi), is an American sparrow. It previously was considered a subspecies of the Prevost's ground sparrow.

References

  1. BirdLife International (2020). "Junco vulcani". IUCN Red List of Threatened Species . 2020: e.T22721094A136819953. doi: 10.2305/IUCN.UK.2020-3.RLTS.T22721094A136819953.en . Retrieved 12 November 2021.