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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: 658863
  Adult

Villa Ventana
Buenos Aires
Argentina
10/24/2025
Eduardo Cusano
Foto
Photography ID: 658768
  Juvenile

Villa Ventana
Buenos Aires
Argentina
10/19/2025
Eduardo Cusano
Foto
Photography ID: 658767
  Adult

Villa Ventana
Buenos Aires
Argentina
10/19/2025
Eduardo Cusano
Foto
Photography ID: 604191
  Adult

Posadas
Misiones
Argentina
09/26/2024
Eduardo Cusano
Foto
Photography ID: 604025
  Adult

Parque Federal Campo San Juan
Misiones
Argentina
09/25/2024
Eduardo Cusano
Foto
Photography ID: 603694
  Adult

Posadas
Misiones
Argentina
09/23/2024
Eduardo Cusano
Foto
Photography ID: 593079
  Adult

Vieytes
Buenos Aires
Argentina
06/29/2024
Eduardo Cusano
Foto
Photography ID: 533859
  Adult

Santa Rosa de Calamuchita
Córdoba
Argentina
04/22/2023
Eduardo Cusano



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Last Vocalizations published




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Last Filmings published


Video ID: 6399
  Adult

Posadas
Misiones
Argentina
09/23/2024
Eduardo Cusano



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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
237956224/10/202514:47ArgentinaBuenos AiresArroyo Belisario, Villa VentanaEduardo Cusano
237918221/10/202511:59ArgentinaBuenos AiresCno. provincial 106-05Eduardo Cusano
238225019/10/2025ArgentinaBuenos AiresVilla VentanaEduardo Cusano
237815719/10/202515:14ArgentinaBuenos AiresRuta Provincial 762Eduardo Cusano
230831420/06/2025ArgentinaCiudad Autónoma de Buenos AiresReserva Ecológica Costanera Sur (RECS)Eduardo Cusano
230683618/06/202511:07ArgentinaCiudad Autónoma de Buenos AiresBacacay 1025, CaballitoEduardo Cusano
230829005/04/2025ArgentinaCiudad Autónoma de Buenos AiresReserva Ecológica Costanera Sur (RECS)Eduardo Cusano
219837129/10/2024ArgentinaLa PampaReserva Provincial Parque LuroEduardo Cusano
216718526/09/2024ArgentinaMisionesReserva Natural Arroyo Ita, PosadasEduardo Cusano
216436225/09/2024ArgentinaMisionesParque Federal Campo San JuanEduardo Cusano
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.