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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: 507458
  Adult

Arerunguá
Salto
Uruguay
05/14/2022
Luis Mier
Foto
Photography ID: 396141
  Adult

Villa Serrana
Lavalleja
Uruguay
01/31/2020
Luis Mier
Foto
Photography ID: 333439
  Adult

Laguna Negra
Rocha
Uruguay
05/19/2019
Luis Mier
Foto
Photography ID: 313155
  Adult

Villa Serrana
Lavalleja
Uruguay
01/22/2019
Luis Mier
Foto
Photography ID: 308241
  Adult

Arroyo Yerbal grande
Treinta y Tres
Uruguay
12/31/2018
Luis Mier
Foto
Photography ID: 287004
  Adult

Calera de las huerfanas
Colonia
Uruguay
09/16/2018
Luis Mier
Foto
Photography ID: 180483
  Juvenile

Campo privado
Colonia
Uruguay
03/26/2016
Luis Mier
Foto
Photography ID: 178175
  Juvenile

Punta gorda
Colonia
Uruguay
02/15/2015
Luis Mier



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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
163972414/05/2022UruguaySaltoArerunguáLuis Mier
123908831/01/2020UruguayLavallejaVilla SerranaLuis Mier
92482819/05/2019UruguayRochaColonia Don Bosco, Laguna NegraLuis Mier
87635822/01/2019UruguayLavallejaVilla SerranaLuis Mier
86209831/12/2018UruguayTreinta y TresPaso del Yerbal, Arroyo Yerbal grandeLuis Mier
80712816/09/2018UruguayColoniaCalera de las huerfanasLuis Mier
51526826/03/2016UruguayColoniaCampo privadoLuis Mier
50952615/02/2015UruguayColoniaPunta gordaLuis Mier
Page 1

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Citation recommended:

EcoRegistros. 2026. Chalk-browed Mockingbird (Mimus saturninus) - Species sheet. Acceded from https://www.ecoregistros.org on 12/04/2026.