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Chalk-browed Mockingbird

Mimus saturninus
(Lichtenstein, MHC, 1823)
Calandria Grande
Sabiá-do-campo

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

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Records from Balcarce

Conservation status according to BirdLife International: Least Concern

Description: A medium-sized and slender mockingbird with an upright posture and a clean, elongated profile. Its plumage is mostly grayish to brownish, with subtle streaking on the breast and flanks and paler underparts. The wings show a contrasting pattern of dark and light patches, especially noticeable in flight. It has a slightly curved, fine bill suitable for probing insects and fruit. The yellowish eyes give it a sharp, alert expression. Juveniles display a duller and less contrasted appearance.

Geographical distribution: It occurs widely across South America, from central and eastern Brazil through Paraguay, Bolivia, Uruguay, and much of Argentina, occupying open and semi-open landscapes. It thrives in dry regions, savannas, pampas and even suburban environments.

Habitat: Inhabits open grasslands, scrublands, forest edges, rural environments and urban areas, where it adapts readily. It is frequently observed in gardens, parks and areas with scattered shrubs, often using exposed branches, posts or human-made structures as vantage points.

Diet: Its diet is omnivorous and opportunistic, including insects, small invertebrates, fleshy fruits, seeds and occasionally human-related food items. It forages mainly on the ground, walking with confident steps and pausing to inspect leaf litter or cavities for prey.

Behavior: A highly territorial species, especially during the breeding season. Its song is strong, varied and persistent, often including imitations of other birds. It tends to be bold and active, regularly perching on elevated lookouts. In human-modified areas it may form small family groups and defend resources vigorously.

Breeding: Builds an open and bulky nest of twigs and plant fibers in shrubs, medium-height trees or artificial structures. The clutch typically contains 2 to 4 eggs. The female performs most of the incubation, while both adults defend the territory and feed the chicks until independence.

Conservation status: Classified as Least Concern (LC) globally, supported by its broad range, adaptability and stable populations. It thrives in altered landscapes and often expands into human-modified areas.


Author of this compilation: EcoRegistros – 08/12/2025




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Last published photographs

Foto
Photography ID: 66717
  Adult

Balcarce
Buenos Aires
Argentina
01/03/2014
Mateo Alberto Gual



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Last Vocalizations published




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Last Filmings published


Video ID: 3070
  Juvenile

Balcarce
Buenos Aires
Argentina
02/11/2018
Mateo Alberto Gual



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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
211001412/07/2024ArgentinaBuenos AiresEntre Camino de Los Curros y Balcarce, Balcarce6Gabriel Carbajales
196419003/02/2024ArgentinaBuenos AiresAvenida Suipacha 2033, BalcarceSantiago Juan Torres
190184723/09/2023ArgentinaBuenos AiresReserva Natural Privada "el Retoño", Balcarce3José Luis Ianiro
156155219/03/2022ArgentinaBuenos AiresCalle 95, Balcarce3Victoria Herrera
140035608/05/2021ArgentinaBuenos AiresBalcarceSantiago Juan Torres
70032811/02/2018ArgentinaBuenos AiresCercanias La Barrosa, BalcarceMateo Alberto Gual
62129321/09/2017ArgentinaBuenos AiresCamino a San Agustín, Balcarce2Carlos Enrique Alvarez
57780928/05/2017ArgentinaBuenos AiresSierra La Barrosa, BalcarceSantiago Juan Torres
105795815/11/2015ArgentinaBuenos AiresLaguna La Brava - Zona Camping Ruca Lauquen, BalcarcePablo Adrián Otero
35212624/10/2015ArgentinaBuenos AiresSierra La Bachicha, BalcarceSantiago Juan Torres
Page 1

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Citation recommended:

EcoRegistros. 2026. Chalk-browed Mockingbird (Mimus saturninus) - Species sheet. Acceded from https://www.ecoregistros.org on 18/03/2026.