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Rufous Hornero

Furnarius rufus
(Gmelin, JF, 1788)
Hornero
João-de-barro

Family: Furnariidae
Order: Passeriformes
Class: Aves
Phylum / Division: Chordata
Kingdom: Animalia

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Records from Olavarría

Conservation status according to BirdLife International: Least Concern

Other common names: Alonsito, Caserito.

Synonyms: Merops rufus.

Subspecies:


Description: It is a medium-sized passerine bird, easily recognized by its predominantly rufous-brown plumage, slightly darker wings, and paler throat. The body is sturdy, with a short tail and a strong, straight bill well adapted for ground foraging. Its compact appearance and upright posture are especially noticeable when walking across open areas.

Geographic distribution: It is widely distributed across central and southern South America, including Argentina, Uruguay, Paraguay, Bolivia, southern Brazil, and parts of eastern Chile. The species is very common throughout much of its range, particularly in lowland temperate regions, where it remains present year-round.

Habitat: It inhabits a wide variety of open and semi-open environments, such as grasslands, savannas, agricultural fields, rural areas, and urban settings. It shows remarkable adaptability to human-altered landscapes and is frequently observed in gardens, parks, and near buildings.

Feeding: Its diet is mainly insectivorous, consisting of insects, larvae, spiders, and other small invertebrates collected while walking on the ground. Occasionally, it may consume small amounts of plant material. Foraging is active, often involving probing and turning over soil with the bill.

Behavior: It is a territorial and generally monogamous bird, usually seen alone or in pairs. The species is notably tolerant of human presence and is well known for its loud, repetitive song, which plays an important role in territorial defense and pair communication.

Nesting: It builds one of the most distinctive nests among South American birds: a mud structure shaped like an oven, with a lateral entrance leading to an inner chamber. Both members of the pair participate in nest construction, which is typically placed on posts, trees, buildings, or artificial structures. The usual clutch consists of 3 to 4 eggs, incubated by both adults.

Conservation status: It is classified as Least Concern, owing to its broad distribution, large population size, and high adaptability to human-modified environments.


Author of this compilation: EcoRegistros – 20/12/2025

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Last published photographs

Foto
Photography ID: 674901
  Adult

Olavarría
Buenos Aires
Argentina
02/23/2026
Daniel Acosta
Foto
Photography ID: 135744
  Adult

Olavarría
Buenos Aires
Argentina
01/28/2016
Daniel Acosta
Foto
Photography ID: 76993
  Adult

Olavarría
Buenos Aires
Argentina
01/13/2015
Daniel Acosta
Foto
Photography ID: 34212
  Adult

Olavarría
Buenos Aires
Argentina
01/14/2014
Daniel Acosta



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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
243846023/02/2026ArgentinaBuenos AiresOlavarríaDaniel Acosta
232577925/07/202511:29ArgentinaBuenos AiresRuta 226, Olavarría1Santiago Juan Torres
212142922/07/2024ArgentinaBuenos AiresVilla Alfredo Fortabat (loma Negra), Olavarría2Diego Varales
166267214/08/2022ArgentinaBuenos AiresSalto de piedra, Olavarría7Jorge Fernando Di Laudo
166266014/08/2022ArgentinaBuenos AiresLaguna Blanca Chica, Olavarría2Jorge Fernando Di Laudo
69615008/02/2018ArgentinaBuenos AiresOlavarría11Sebastián Otero
69514406/02/2018ArgentinaBuenos AiresOlavarría8Sebastián Otero
69315105/02/2018ArgentinaBuenos AiresRamón Rendon 400-700, Olavarría8Sebastián Otero
69502704/02/2018ArgentinaBuenos AiresOlavarría5Sebastián Otero
69304603/02/2018ArgentinaBuenos AiresOlavarría13Sebastián Otero
Page 1

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Bibliography related


Artículo Heredia, J., R. Moller Jensen, C. Figuerero y J. La Grotteria. 2010. Cuatro Furnariidae ‘pescando’: Hornero (Furnarius rufus), Curutié Colorado (Certhiaxis cinnamomea), Remolinera Castaña (Cinclodes atacamensis) y Remolinera Chocolate (Cinclodes olrogi). Nuestras Aves, 55: 17-19.



Citation recommended:

EcoRegistros. 2026. Rufous Hornero (Furnarius rufus) - Species sheet. Acceded from https://www.ecoregistros.org on 11/03/2026.