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Shiny Cowbird

Molothrus bonariensis
(Gmelin, JF, 1789)
Tordo Renegrido
Chupim

Family: Icteridae
Order: Passeriformes
Class: Aves
Phylum / Division: Chordata
Kingdom: Animalia

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Records from Junin de los Andes

Conservation status according to BirdLife International: Least Concern

Description: It is a medium-sized bird with a robust build and upright posture, showing clear sexual dimorphism. The male displays glossy black plumage with bluish or purplish iridescence, while the female is much duller, with brownish to grayish tones and fine streaking. The bill is short, strong, and conical, suited to a varied diet, and the dark eyes give it an alert expression.

Geographic distribution: It is widely distributed throughout South America, with natural and human-facilitated expansion into Central America and parts of the Caribbean. It is one of the most widespread species within its genus.

Habitat: It primarily inhabits open and semi-open environments, such as grasslands, farmland, rural areas, city outskirts, and urban parks. Its high tolerance for human-altered landscapes has greatly contributed to its geographic expansion.

Feeding: This species is omnivorous, feeding mainly on seeds, grains, and small invertebrates such as insects and larvae. It often forages on the ground, alone or in groups, frequently taking advantage of resources associated with livestock and agriculture.

Behavior: It is a gregarious and opportunistic species, commonly seen in flocks, especially outside the breeding season. It shows confident and adaptable behavior, often frequenting areas with intense human activity. During reproduction, females exhibit particularly stealthy behavior.

Nesting: It has a distinctive reproductive strategy known as brood parasitism, as it does not build its own nest. Females lay their eggs in the nests of other bird species, which then incubate the eggs and raise the chicks. The young often grow rapidly and may outcompete or displace the host’s offspring.

Conservation status: It is classified as Least Concern, due to its wide distribution, large population size, and strong adaptability. No significant global threats are currently identified.


Author of this compilation: EcoRegistros – 22/12/2025




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Last published photographs

Foto
Photography ID: 33904
  Adult

Junin de los Andes
Neuquén
Argentina
01/12/2014
Sergio Cusano



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 Reports


 Detail of places sorted by number of records








Page 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
243239212/02/2026ArgentinaNeuquénRío Chimehuin, Junin de los AndesNicolas Olejnik
237545817/10/2025ArgentinaNeuquénMallin del Toro, Junin de los AndesNicolas Olejnik
237355212/10/202518:37ArgentinaNeuquénÁngela González 342, Junin de los Andes1Nicolas Olejnik
193157818/12/2023ArgentinaNeuquénJunin de los Andes2Nicolas Olejnik
192771910/12/2023ArgentinaNeuquénJunin de los Andes1Nicolas Olejnik
192529008/12/2023ArgentinaNeuquénLagunas de estancia San Juan, Junin de los AndesNicolas Olejnik
190870011/11/2023ArgentinaNeuquénJunin de los AndesNicolas Olejnik
190405102/11/2023ArgentinaNeuquénMallin del Toro, Junin de los AndesNicolas Olejnik
190015621/10/2023ArgentinaNeuquénValle del rio Curruhue, Junin de los AndesNicolas Olejnik
173184005/03/2023ArgentinaNeuquénJunin de los AndesNicolas Olejnik
Page 1

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Citation recommended:

EcoRegistros. 2026. Shiny Cowbird (Molothrus bonariensis) - Species sheet. Acceded from https://www.ecoregistros.org on 10/04/2026.