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Mimus saturninus

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





Geographic distribution


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Species photographs

Last published photographs

Foto
Photography ID: 703753
  Adult

Albufera de Reta
Buenos Aires
Argentina
07/15/2026
Elsa Longo
Foto
Photography ID: 686286
  Adult

Villa de Merlo
San Luis
Argentina
03/27/2026
Elsa Longo
Foto
Photography ID: 661716
  Adult

Reserva Natural El Puente Verde
Misiones
Argentina
10/21/2025
Elsa Longo
Foto
Photography ID: 643944
  Adult

Sierras de los Comechingones
San Luis
Argentina
06/02/2025
Elsa Longo
Foto
Photography ID: 579971
  Adult

Albúfera Laguna Mar Chiquita
Buenos Aires
Argentina
03/25/2024
Elsa Longo
Foto
Photography ID: 576424
  Adult

Ceibas
Entre Ríos
Argentina
02/15/2024
Elsa Longo
Foto
Photography ID: 532871
  Immature

Parque Nacional Lihué Calel
La Pampa
Argentina
03/09/2023
Elsa Longo
Foto
Photography ID: 492614
  Juvenile

La Falda y camino del cuadrado
Córdoba
Argentina
03/10/2022
Elsa Longo
Foto
Photography ID: 464511
  Adult

Villa de Merlo
San Luis
Argentina
09/03/2021
Elsa Longo
Foto
Photography ID: 454644
  Adult

Mataderos
Ciudad Autónoma de Buenos Aires
Argentina
05/30/2021
Elsa Longo



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Species vocalizations

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Species reports



 Detail of places sorted by number of records








Page 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
252528415/07/2026ArgentinaBuenos AiresAlbufera de RetaElsa Longo
251075427/06/2026ArgentinaChacoIsla del Cerrito1Elsa Longo
248157121/05/2026ArgentinaBuenos AiresCalle rural a Alvarez Jonte, MagdalenaElsa Longo
247056714/05/2026ArgentinaEntre RíosCeibas12Elsa Longo
247334418/04/2026ArgentinaBuenos AiresParque Natural Municipal Ribera Norte (San Isidro)Elsa Longo
246911627/03/2026ArgentinaSan LuisCamino Damiana Vega, Villa de MerloElsa Longo
246236325/03/2026ArgentinaCórdobaRuta 51 entre Villa Dolores y Chancaní1Elsa Longo
244824011/02/2026ArgentinaLa PampaReserva Provincial Parque LuroElsa Longo
243995914/01/2026ArgentinaEntre RíosParque Nacional El PalmarElsa Longo
239577821/10/2025ArgentinaMisionesCamino rural hacia la reserva, Reserva Natural El Puente VerdeElsa Longo
Page 1

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Recommended citation
Please use the following reference when citing this species account.
EcoRegistros. 2026. Chalk-browed Mockingbird (Mimus saturninus) – Species account. Accessed from www.ecoregistros.org on 26/09/2026.