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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: 478980
  Fledgling

Las Armas
Buenos Aires
Argentina
01/06/2022
Gustavo Ramos
Foto
Photography ID: 478979
  Fledgling

Las Armas
Buenos Aires
Argentina
01/06/2022
Gustavo Ramos
Foto
Photography ID: 462269
  Adult

Cardales
Buenos Aires
Argentina
09/18/2021
Gustavo Ramos
Foto
Photography ID: 374904
  Adult

Mar del Plata
Buenos Aires
Argentina
01/03/2020
Gustavo Ramos
Foto
Photography ID: 373739
  Adult

Concepción del Uruguay
Entre Ríos
Argentina
12/26/2019
Gustavo Ramos
Foto
Photography ID: 373063
  Adult

Federación
Entre Ríos
Argentina
12/23/2019
Gustavo Ramos
Foto
Photography ID: 369930
  Adult

Quilmes
Buenos Aires
Argentina
12/11/2019
Gustavo Ramos
Foto
Photography ID: 353958
  Adult

Foz do Iguaçu
Paraná
Brazil
09/04/2019
Gustavo Ramos
Foto
Photography ID: 346066
  Adult

General Guido
Buenos Aires
Argentina
01/29/2019
Gustavo Ramos
Foto
Photography ID: 345964
  Adult

Tigre
Buenos Aires
Argentina
01/12/2019
Gustavo Ramos



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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
153465106/01/2022ArgentinaBuenos AiresEstación Shell de Ruta 2, Las ArmasGustavo Ramos
146703526/09/2021ArgentinaCiudad Autónoma de Buenos AiresParque 3 de Febrero, Lago de RegatasGustavo Ramos
146309918/09/2021ArgentinaBuenos AiresBarrio cerrado Monet, CardalesGustavo Ramos
117048003/01/2020ArgentinaBuenos AiresPlaya Punta Mogotes, Mar del PlataGustavo Ramos
116740026/12/2019ArgentinaEntre RíosRuta Nacional 14 Estacuin Axion Km 211, Concepción del UruguayGustavo Ramos
116371323/12/2019ArgentinaEntre RíosZona urbana en la orilla del lago- Camino costero peatonal, FederaciónGustavo Ramos
115441311/12/2019ArgentinaBuenos AiresDon Bosco, QuilmesGustavo Ramos
114024310/11/2019ArgentinaCiudad Autónoma de Buenos AiresCamino de los Lagartos, Reserva Ecológica Costanera Sur (RECS)Gustavo Ramos
110510704/09/2019BrazilParanáTemplo Budista, Foz do IguaçuGustavo Ramos
96078529/01/2019ArgentinaBuenos AiresYpf Ruta 2, General GuidoGustavo Ramos
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.