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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 Santo Tomé

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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Latest feeding records




Last published photographs

Foto
Photography ID: 491294
  Adult

Santo Tomé
Santa Fe
Argentina
09/02/2018
Eduardo Beltrocco
Foto
Photography ID: 490305
  Adult

Santo Tomé
Santa Fe
Argentina
08/08/2018
Eduardo Beltrocco
Foto
Photography ID: 490253
  Adult

Santo Tomé
Santa Fe
Argentina
07/03/2018
Eduardo Beltrocco
Foto
Photography ID: 490242
  Adult

Santo Tomé
Santa Fe
Argentina
06/20/2018
Eduardo Beltrocco
Foto
Photography ID: 489342
  Adult

Santo Tomé
Santa Fe
Argentina
03/29/2018
Eduardo Beltrocco
Foto
Photography ID: 463941
 
Santo Tomé
Santa Fe
Argentina
04/13/2016
Eduardo Beltrocco
Foto
Photography ID: 463877
  Adult

Santo Tomé
Santa Fe
Argentina
04/11/2016
Eduardo Beltrocco
Foto
Photography ID: 463635
  Adult

Santo Tomé
Santa Fe
Argentina
03/23/2017
Eduardo Beltrocco
Foto
Photography ID: 463480
♂ ♀
  Adult

Santo Tomé
Santa Fe
Argentina
06/09/2017
Eduardo Beltrocco
Foto
Photography ID: 462963
 
Santo Tomé
Santa Fe
Argentina
12/19/2017
Eduardo Beltrocco
Foto
Photography ID: 462881
  Fledgling

Santo Tomé
Santa Fe
Argentina
11/30/2017
Eduardo Beltrocco
Foto
Photography ID: 462550
  Adult

Santo Tomé
Santa Fe
Argentina
09/03/2017
Eduardo Beltrocco



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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
243775122/02/202618:59ArgentinaSanta FeAvenida Lujan 2800, Santo Tomé1Gustavo Fernando Durán
224072326/01/202507:19ArgentinaSanta FeCalle 9 de Julio 1830, Santo Tomé1Gustavo Fernando Durán
198012525/02/2024ArgentinaSanta FeMitre 2740, Santo Tomé1Gustavo Fernando Durán
197153212/02/2024ArgentinaSanta FeMitre 2784, Santo Tomé1Gustavo Fernando Durán
173912626/03/2023ArgentinaSanta FeFalucho 2802, Santo Tomé1Gustavo Fernando Durán
170050108/01/2023ArgentinaSanta FeArea Natural Protegida Laguna Juan de Garay (ex Bedetti), Santo Tomé1Gustavo Fernando Durán
169666501/01/2023ArgentinaSanta FeAvenida Ejercito Argentino 3650, Santo ToméGustavo Fernando Durán
164781602/10/2022ArgentinaSanta FeArea Natural Protegida Laguna Juan de Garay (ex Bedetti), Santo Tomé1Gustavo Fernando Durán
163749011/09/2022ArgentinaSanta FeAvenida Ejercito Argentino 3301, Santo ToméGustavo Fernando Durán
163420604/09/2022ArgentinaSanta FeSarmiento y Centenario, Santo Tomé2Eduardo Beltrocco
Page 1

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Citation recommended:

EcoRegistros. 2026. Chalk-browed Mockingbird (Mimus saturninus) - Species sheet. Acceded from https://www.ecoregistros.org on 20/03/2026.