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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: 558795
  Immature

San Luis
San Luis
Argentina
02/28/2018
Damián Carnevale
Foto
Photography ID: 540878
  Adult

Capilla del Monte
Córdoba
Argentina
08/07/2018
Martín Lépez
Foto
Photography ID: 540728
  Adult

Miramar
Córdoba
Argentina
06/10/2018
Nino A. Grangetto
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: 416941
  Adult

General Viamonte
Córdoba
Argentina
04/30/2018
Green Sergio Rodrigo
Foto
Photography ID: 413787
  Adult

General Pico
La Pampa
Argentina
10/08/2018
Hugo Alberto Valderrey



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Last Vocalizations published




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Last Filmings published


Video ID: 3261
  Adult

Trelew
Chubut
Argentina
06/13/2018
Luis Ramón Molina
Video ID: 3070
  Juvenile

Balcarce
Buenos Aires
Argentina
02/11/2018
Mateo Alberto Gual



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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
108564331/12/2018ArgentinaMisionesSanta Rosa, Capital6Julian Quillen Vidoz
86350131/12/2018UruguayMaldonadoPiriápolis1Diego Oscar
86347131/12/2018UruguayMaldonadoArroyo Jose Ignacio2Diego Oscar
86326631/12/2018ArgentinaSanta FeBañado laguna setubal, Santa FeRodolfo Seró
86230931/12/2018ArgentinaBuenos AiresMaipu, MaipúEsteban Argerich
86209831/12/2018UruguayTreinta y TresPaso del Yerbal, Arroyo Yerbal grandeLuis Mier
86187031/12/2018ArgentinaBuenos AiresRuta sin nombrar, MacedoSantiago Juan Torres
122615130/12/2018ArgentinaEntre RíosÁrea Natural Protegida Don Sebastián2Luis Prevedel
86116030/12/2018ArgentinaBuenos AiresCosta EsmeraldaSantiago Juan Torres
86103730/12/2018ArgentinaRío NegroEntre El Sótano y Piedras Coloradas., Las Grutas1Adriana Bellotti
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.