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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: 665716
  Adult

Departamento Gualeguaychú
Entre Ríos
Argentina
01/03/2026
Gustavo Puente
Foto
Photography ID: 618026
  Adult

pre delta
Entre Ríos
Argentina
01/08/2025
Gustavo Puente
Foto
Photography ID: 563134
  Adult

Rosario zona urbana
Santa Fe
Argentina
01/03/2024
Gustavo Puente
Foto
Photography ID: 521865
  Adult

Ceibas
Entre Ríos
Argentina
01/22/2023
Gustavo Puente
Foto
Photography ID: 519939
  Adult

Santa Fe
Santa Fe
Argentina
01/04/2023
Gustavo Puente
Foto
Photography ID: 488276
  Adult

Costa Uruguay Sur
Entre Ríos
Argentina
04/02/2022
Gustavo Puente
Foto
Photography ID: 478360
  Adult

Departamento Gualeguaychú
Entre Ríos
Argentina
01/08/2022
Gustavo Puente
Foto
Photography ID: 478031
  Adult

Perdices
Entre Ríos
Argentina
01/04/2022
Gustavo Puente
Foto
Photography ID: 439079
  Adult

Departamento Gualeguaychú
Entre Ríos
Argentina
03/31/2021
Gustavo Puente



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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
240971003/01/2026ArgentinaEntre RíosNuevo Pueblo Belgrano al sur, Departamento GualeguaychúGustavo Puente
233887208/08/2025ArgentinaEntre RíosReserva Natural Municipal Las PiedrasGustavo Puente
223180908/01/2025ArgentinaEntre Ríospre deltaGustavo Puente
193905503/01/2024ArgentinaEntre RíosRuta 11, entre Victoria y GualeguayGustavo Puente
193821303/01/2024ArgentinaSanta FeRosario zona urbanaGustavo Puente
170918222/01/2023ArgentinaEntre RíosCamino a 4 Hermanas, CeibasGustavo Puente
169801104/01/2023ArgentinaSanta FeCostanera Laguna Setúbal, Santa FeGustavo Puente
156615802/04/2022ArgentinaEntre RíosCosta Uruguay SurGustavo Puente
152971108/01/2022ArgentinaEntre RíosNoreste de Pueblo Belgrano, Departamento GualeguaychúGustavo Puente
152736204/01/2022ArgentinaEntre RíosPerdicesGustavo Puente
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.