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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 Colonia del Sacramento

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: 321599
 
Colonia del Sacramento
Colonia
Uruguay
03/01/2019
Lucas De Ciria
Foto
Photography ID: 277501
  Adult

Colonia del Sacramento
Colonia
Uruguay
07/24/2018
Diego Alfonso Rosa
Foto
Photography ID: 218741
  Adult

Colonia del Sacramento
Colonia
Uruguay
09/09/2017
Eduardo Nadal
Foto
Photography ID: 170906
  Adult

Colonia del Sacramento
Colonia
Uruguay
09/26/2016
Diego Alfonso Rosa



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Page 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
90644707/04/2019UruguayColoniaFaro de Colonia del Sacramento, Colonia del SacramentoNataly Andrea Baeza Vicencio
89539701/03/2019UruguayColoniaColonia del SacramentoLucas De Ciria
78418924/07/2018UruguayColoniaCostanera Sur, Colonia del SacramentoDiego Alfonso Rosa
68564128/01/2018UruguayColoniaColonia del SacramentoDiego Varales
68507527/01/2018UruguayColoniaColonia del Sacramento1Diego Varales
61398709/09/2017UruguayColoniaColonia del SacramentoEduardo Nadal
49031326/09/2016UruguayColoniaAcceso Hotel La Reserve, Colonia del SacramentoDiego Alfonso Rosa
30965325/07/2015UruguayColoniaColonia del SacramentoSebastián Rozadilla
31008524/07/2015UruguayColoniaColonia del SacramentoDiego Varales
20770724/11/2014UruguayColoniaColonia del SacramentoMartin Ferrari
Page 1

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Citation recommended:

EcoRegistros. 2026. Chalk-browed Mockingbird (Mimus saturninus) - Species sheet. Acceded from https://www.ecoregistros.org on 25/03/2026.