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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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Records from Tandil

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: 676079
  Adult

Tandil
Buenos Aires
Argentina
01/22/2026
Liliana Rubilar Puerta
Foto
Photography ID: 634147
  Adult

Tandil
Buenos Aires
Argentina
05/11/2025
Liliana Rubilar Puerta
Foto
Photography ID: 618642
  Adult

Tandil
Buenos Aires
Argentina
01/11/2025
Liliana Rubilar Puerta
Foto
Photography ID: 575328
  Adult

Tandil
Buenos Aires
Argentina
10/21/2023
Celina Emilia Iratchet
Foto
Photography ID: 254616
  Adult

Tandil
Buenos Aires
Argentina
03/17/2018
Adriana Bellotti



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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
243739322/02/202610:06ArgentinaBuenos AiresTandil1Santiago Juan Torres
243710221/02/202618:34ArgentinaBuenos AiresCabañas Edén Soñado, Tandil1Santiago Juan Torres
243545217/02/2026ArgentinaBuenos AiresCerro Los Nogales, TandilLiliana Rubilar Puerta
243537816/02/2026ArgentinaBuenos AiresRuta 80 - Acceso a Vela, TandilLiliana Rubilar Puerta
243533916/02/2026ArgentinaBuenos AiresLaguna del Comisario, TandilLiliana Rubilar Puerta
243273914/02/202609:50ArgentinaBuenos AiresTandil1Santiago Juan Torres
243471812/02/202618:58ArgentinaBuenos AiresTandil1Santiago Juan Torres
243186708/02/2026ArgentinaBuenos AiresCamino rural Tandil - Azucena, TandilLiliana Rubilar Puerta
243182807/02/2026ArgentinaBuenos AiresAcceso a Fulton, TandilLiliana Rubilar Puerta
243155306/02/2026ArgentinaBuenos AiresCerro Los Nogales, TandilLiliana Rubilar Puerta
Page 1

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Citation recommended:

EcoRegistros. 2026. Chalk-browed Mockingbird (Mimus saturninus) - Species sheet. Acceded from https://www.ecoregistros.org on 17/03/2026.