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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 Chajarí

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: 494033
  Adult

Chajarí
Entre Ríos
Argentina
05/08/2022
Adrian Braidotti
Foto
Photography ID: 123305
  Adult

Chajarí
Entre Ríos
Argentina
10/10/2015
Walter Bustamante
Foto
Photography ID: 63506
  Juvenile

Chajarí
Entre Ríos
Argentina
06/14/2014
Retamoso José Ignacio
Foto
Photography ID: 31211
  Adult

Chajarí
Entre Ríos
Argentina
12/29/2013
Carlos M. Grassini



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Last Vocalizations published



Audio playerUserDateCountryProvincePlaceSexLife stageIt was observedDetails
Carlos M. Grassini08/31/2014ArgentinaEntre RíosCalle Inmigrantes Percara entre 25 de Mayo y ruta 2ChajaríIndistinguishableAdultYesNo
Carlos M. Grassini05/06/2013ArgentinaEntre RíosCalle Siburu entre Udine y Av. V. Libertad (30°44´49.85"s; 58° 0´11.77"o)ChajaríIndistinguishableAdultYesNo



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Last Filmings published


Video ID: 387
  Adult

Chajarí
Entre Ríos
Argentina
08/18/2013
Carlos M. Grassini



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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
244675213/03/2026ArgentinaEntre RíosZona norte, Chajarí1Pablo Bruni
237665219/10/2025ArgentinaEntre RíosZona San Pedro, Chajarí2Pablo Bruni
232364020/07/2025ArgentinaEntre RíosZona San Pedro, Chajarí2Pablo Bruni
221924022/12/2024ArgentinaEntre RíosZona San Pedro, Chajarí3Pablo Bruni
219790817/11/2024ArgentinaEntre RíosZona San Pedro, Chajarí1Pablo Bruni
215663822/09/2024ArgentinaEntre RíosCamping Chajarí, Chajarí1Pablo Bruni
213741025/08/2024ArgentinaEntre RíosChajarí1Pablo Bruni
202509921/04/2024ArgentinaEntre RíosComplejo Termal Chajarí y alrededores, Chajarí1Pablo Bruni
200556724/02/2024ArgentinaEntre RíosZona San Pedro, Chajarí1Pablo Bruni
179048606/07/2023ArgentinaEntre Ríostermas Chajarí, ChajaríAdrian Braidotti
Page 1

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Citation recommended:

EcoRegistros. 2026. Chalk-browed Mockingbird (Mimus saturninus) - Species sheet. Acceded from https://www.ecoregistros.org on 17/03/2026.