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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: 679763
  Adult

La Emilia
Buenos Aires
Argentina
03/22/2026
Peter Vidana
Foto
Photography ID: 676225
  Adult

Arroyo Colastiné
Santa Fe
Argentina
03/01/2026
Peter Vidana
Foto
Photography ID: 675538
  Adult

Rueda
Santa Fe
Argentina
02/17/2026
Peter Vidana
Foto
Photography ID: 674449
  Adult

Punta Indio
Buenos Aires
Argentina
02/15/2026
Peter Vidana
Foto
Photography ID: 669493
  Adult

Luis Palacios
Santa Fe
Argentina
01/18/2026
Peter Vidana
Foto
Photography ID: 663111
  Adult

La Azotea
Entre Ríos
Argentina
11/23/2025
Peter Vidana
Foto
Photography ID: 663097
  Adult

Diamante
Entre Ríos
Argentina
11/22/2025
Peter Vidana
Foto
Photography ID: 663075
  Adult

Las cuevas
Entre Ríos
Argentina
11/22/2025
Peter Vidana
Foto
Photography ID: 653263
  Adult

Victoria
Entre Ríos
Argentina
09/21/2025
Peter Vidana
Foto
Photography ID: 649536
  Adult

Parque Nacional El Palmar
Entre Ríos
Argentina
08/28/2025
Peter Vidana
Foto
Photography ID: 632769
  Adult

Rosario
Santa Fe
Argentina
05/01/2025
Peter Vidana



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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
245326824/03/2026ArgentinaEntre RíosReserva de Usos Múltiples Humedales e Islas de VictoriaPeter Vidana
245296722/03/2026ArgentinaBuenos AiresLa EmiliaPeter Vidana
244153501/03/2026ArgentinaSanta FeCamino a cascada Arroyo Colastiné, Arroyo ColastinéPeter Vidana
243972517/02/2026ArgentinaSanta FeCañada Rica, RuedaPeter Vidana
243748915/02/2026ArgentinaBuenos AiresArroyo Casilla, campos, Punta IndioPeter Vidana
242096718/01/2026ArgentinaSanta FeReserva natural Carancho Diablo, Luis PalaciosPeter Vidana
240023123/11/2025ArgentinaEntre RíosLa AzoteaPeter Vidana
240015122/11/2025ArgentinaEntre RíosBalneario Camping Diamante, DiamantePeter Vidana
239985722/11/2025ArgentinaEntre RíosLas cuevasPeter Vidana
236745321/09/2025ArgentinaEntre RíosRio Manso, VictoriaPeter Vidana
Page 1

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Citation recommended:

EcoRegistros. 2026. Chalk-browed Mockingbird (Mimus saturninus) - Species sheet. Acceded from https://www.ecoregistros.org on 29/03/2026.