It is a medium-sized bird with a long, graduated tail and fairly long bill and legs. The bill and legs are black and the eye is pale yellow. The male is about 31 cm long while the female is 25 cm. The adult male's plumage is entirely black with an iridescent gloss. The gloss is violet on the belly and tail, violet-green on the head, back, and breast, and blue-green on most of the wings. The tail of the male is V-shaped, rising from the centre to the outer feathers. Immature males are duller and less glossy than the adults, with a brown belly and thighs. The female is brown above with a pale supercilium (the stripe over the eye), made more obvious by the dark lores and ear coverts. The thighs, flanks, and undertail coverts are dark brown, while the rest of the underparts are buff, darkest on the upper breast, and paler on the throat and belly.
The similar great-tailed grackle (Quiscalus mexicanus) overlaps with it in range, but is larger, with a longer tail and larger bill. The male has a less green gloss than the Nicaraguan grackle, while the female is darker below and has a less obvious supercilium.
The Nicaraguan grackle has a variety of calls, including a frequent nasal call, various whistling notes, and a sharp, rising whine. The song is a series of whistles, which increase in speed and frequency.
Distribution and habitatedit
It is restricted to western Nicaragua and northern Costa Rica. It mainly occurs in the vicinity of Lake Nicaragua and Lake Managua, but its range has expanded a little due to the clearance of forest and creation of pastures by man. It may be a fairly recent arrival in Costa Rica, where it is found in the Caño Negro area along the Río Frio. It is not migratory, but makes some local movements in response to seasons and changes in water level.
It nests only in marshland, but forages in scrubland, wet pastures, and along lake shores and riverbanks.
Behaviouredit
It feeds in small groups, foraging on the ground for seeds and insects. It turns over stones or debris to look for food underneath, and often forages on or around cattle.
It nests in small colonies in bushes or trees or among marsh vegetation such as sedges. The well-hidden nest is cup-shaped and made from grass and sedge leaves and roots. Two or three eggs are laid; they are blue with dark markings concentrated at the larger end. Only the female incubates the eggs, but both sexes are involved in feeding the young.
Referencesedit
^BirdLife International (2020). "Quiscalus nicaraguensis". IUCN Red List of Threatened Species. 2020: e.T22724317A136764424. doi:10.2305/IUCN.UK.2020-3.RLTS.T22724317A136764424.en. Retrieved 11 November 2021.
Garrigues, Richard & Dean, Robert (2007) Birds of Costa Rica, Christopher Helm, London.
Jaramillo, Alvaro & Burke, Peter (1999) New World Blackbirds: the Icterids, Christopher Helm, London.
Ridgely, Robert S. & Gwynne, John A., Jr. (1989) A Guide to the Birds of Panama with Costa Rica, Nicaragua, and Honduras, Princeton University Press.
External linksedit
Wikispecies has information related to Quiscalus nicaraguensis.
Media related to Quiscalus nicaraguensis at Wikimedia Commons
Xeno-canto: recording of Nicaraguan grackle calls
Photo of Nicaraguan grackle
April 10, 2024
nicaraguan, grackle, quiscalus, nicaraguensis, species, passerine, bird, belonging, genus, quiscalus, genus, grackles, world, blackbird, family, icteridae, found, only, nicaragua, northernmost, costa, rica, conservation, statusleast, concern, iucn, scientific,. The Nicaraguan grackle Quiscalus nicaraguensis is a species of passerine bird belonging to the genus Quiscalus a genus of grackles in the New World blackbird family Icteridae It is found only in Nicaragua and northernmost Costa Rica Nicaraguan grackleConservation statusLeast Concern IUCN 3 1 1 Scientific classificationDomain EukaryotaKingdom AnimaliaPhylum ChordataClass AvesOrder PasseriformesFamily IcteridaeGenus QuiscalusSpecies Q nicaraguensisBinomial nameQuiscalus nicaraguensisSalvin amp Godman 1891 Contents 1 Description 2 Distribution and habitat 3 Behaviour 4 References 5 External linksDescription editIt is a medium sized bird with a long graduated tail and fairly long bill and legs The bill and legs are black and the eye is pale yellow The male is about 31 cm long while the female is 25 cm The adult male s plumage is entirely black with an iridescent gloss The gloss is violet on the belly and tail violet green on the head back and breast and blue green on most of the wings The tail of the male is V shaped rising from the centre to the outer feathers Immature males are duller and less glossy than the adults with a brown belly and thighs The female is brown above with a pale supercilium the stripe over the eye made more obvious by the dark lores and ear coverts The thighs flanks and undertail coverts are dark brown while the rest of the underparts are buff darkest on the upper breast and paler on the throat and belly The similar great tailed grackle Quiscalus mexicanus overlaps with it in range but is larger with a longer tail and larger bill The male has a less green gloss than the Nicaraguan grackle while the female is darker below and has a less obvious supercilium The Nicaraguan grackle has a variety of calls including a frequent nasal call various whistling notes and a sharp rising whine The song is a series of whistles which increase in speed and frequency Distribution and habitat editIt is restricted to western Nicaragua and northern Costa Rica It mainly occurs in the vicinity of Lake Nicaragua and Lake Managua but its range has expanded a little due to the clearance of forest and creation of pastures by man It may be a fairly recent arrival in Costa Rica where it is found in the Cano Negro area along the Rio Frio It is not migratory but makes some local movements in response to seasons and changes in water level It nests only in marshland but forages in scrubland wet pastures and along lake shores and riverbanks Behaviour editIt feeds in small groups foraging on the ground for seeds and insects It turns over stones or debris to look for food underneath and often forages on or around cattle It nests in small colonies in bushes or trees or among marsh vegetation such as sedges The well hidden nest is cup shaped and made from grass and sedge leaves and roots Two or three eggs are laid they are blue with dark markings concentrated at the larger end Only the female incubates the eggs but both sexes are involved in feeding the young References edit BirdLife International 2020 Quiscalus nicaraguensis IUCN Red List of Threatened Species 2020 e T22724317A136764424 doi 10 2305 IUCN UK 2020 3 RLTS T22724317A136764424 en Retrieved 11 November 2021 Garrigues Richard amp Dean Robert 2007 Birds of Costa Rica Christopher Helm London Jaramillo Alvaro amp Burke Peter 1999 New World Blackbirds the Icterids Christopher Helm London Ridgely Robert S amp Gwynne John A Jr 1989 A Guide to the Birds of Panama with Costa Rica Nicaragua and Honduras Princeton University Press External links edit nbsp Wikispecies has information related to Quiscalus nicaraguensis nbsp Media related to Quiscalus nicaraguensis at Wikimedia Commons Xeno canto recording of Nicaraguan grackle calls Photo of Nicaraguan grackle Retrieved from https en wikipedia org w index php title Nicaraguan grackle amp oldid 1123007085, wikipedia, wiki, book, books, library,
