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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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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: 551038
  Adult

Federación
Entre Ríos
Argentina
08/27/2023
Diego Alfonso Rosa
Foto
Photography ID: 542297
  Adult

Balneario Reta
Buenos Aires
Argentina
04/08/2023
Diego Alfonso Rosa
Foto
Photography ID: 535710
  Adult

Esquel
Chubut
Argentina
01/28/2023
Diego Alfonso Rosa
Foto
Photography ID: 509522
  Adult

Villa de Merlo
San Luis
Argentina
09/02/2022
Diego Alfonso Rosa
Foto
Photography ID: 509070
  Adult

Potrero de los Funes
San Luis
Argentina
09/11/2022
Diego Alfonso Rosa
Foto
Photography ID: 509069
  Adult

Potrero de los Funes
San Luis
Argentina
09/11/2022
Diego Alfonso Rosa
Foto
Photography ID: 508941
  Adult

La Paz
Córdoba
Argentina
09/02/2022
Diego Alfonso Rosa
Foto
Photography ID: 508884
  Adult

Villa de Merlo
San Luis
Argentina
09/01/2022
Diego Alfonso Rosa
Foto
Photography ID: 507240
  Adult

Villa de Merlo
San Luis
Argentina
09/02/2022
Diego Alfonso Rosa
Foto
Photography ID: 462183
  Adult

Ramallo
Buenos Aires
Argentina
09/18/2021
Diego Alfonso Rosa
Foto
Photography ID: 460761
  Adult

Beccar
Buenos Aires
Argentina
08/29/2021
Diego Alfonso Rosa



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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
189334127/08/2023ArgentinaEntre RíosFederaciónDiego Alfonso Rosa
179760708/04/2023ArgentinaBuenos AiresBalneario RetaDiego Alfonso Rosa
176835128/01/2023ArgentinaChubutLaguna Willimanco, EsquelDiego Alfonso Rosa
164658711/09/2022ArgentinaSan LuisEmbalse Potrero de los Funes, Potrero de los FunesDiego Alfonso Rosa
164658611/09/2022ArgentinaSan LuisEmbalse Potrero de los Funes, Potrero de los FunesDiego Alfonso Rosa
164842102/09/2022ArgentinaSan LuisCabaña Los Remolinos, Villa de MerloDiego Alfonso Rosa
164571202/09/2022ArgentinaCórdobaFinca de Aceite de Oliva Sierra Pura, La PazDiego Alfonso Rosa
163838602/09/2022ArgentinaSan LuisCabaña Los Remolinos, Villa de MerloDiego Alfonso Rosa
164557701/09/2022ArgentinaSan LuisPosada de Campo Maia, Villa de MerloDiego Alfonso Rosa
146297818/09/2021ArgentinaBuenos AiresCamino Rural a Vuelta de Obligado, RamalloDiego Alfonso Rosa
Page 1

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Citation recommended:

EcoRegistros. 2026. Chalk-browed Mockingbird (Mimus saturninus) - Species sheet. Acceded from https://www.ecoregistros.org on 11/04/2026.