Caso de acortamiento extremo en la mandíbula superior de un Hornero (Furnarius rufus)

Nico M. Adreani

doi:10.56178/na.v71i.1193

Novel Records Published 12 July 2026 https://doi.org/10.56178/na.v71i.1193

Case of extreme shortening of the upper jaw in a Rufous Hornero (Furnarius rufus)

deformed beak Furnariidae malformation pathology in birds

Nico M. Adreani Departamento de Biología, Facultad de Ciencias, Universidad de la República, Uruguay | Department of collective behavior, Max Planck Institute for Animal Behavior, Germany

Abstract

Birds rely heavily on their beaks, which are crucial for survival, using them for vital tasks such as obtaining food and building nests. In this novel record, I document a new atypical malformation in the beak of a Rufous Hornero (Furnarius rufus).

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References

Haene EH (2025) Registro de malformación del pico en Cacholote Castaño (Pseudoseisura lophotes) en Córdoba, Argentina. Nuestras Aves 70: 165-166. https://doi.org/10.56178/na.vi70.1069
Handel CM, Pajot LM, Matsuoka SM, Hemert CV, Terenzi J, Talbot SL, Mulcahy DM, Meteyer CU, Trust KA (2010) Epizootic of beak deformities among wild birds in Alaska: an emerging disease in North America? The Auk 127(4): 882-898. https://doi.org/10.1525/auk.2010.10111
Magnotti J, Stahl SJ, Burrier K (2025) Mandibular prognathism correction in a juvenile Umbrella Cockatoo (Cacatua alba) with the use of an orthosis. Journal of Avian Medicine and Surgery 38(4): 219-224. https://doi.org/10.1647/AVIANMS-D-24-00016
Pourlis AF (2011) Developmental malformations in avian species. Manifestations of unknown or genetic etiology-a review. Asian Journal of Animal and Veterinary Advances 6(5): 401-415. https://doi.org/10.3923/ajava.2011.401.415
Sazima I, Hipolito JV, D’Angelo GB (2016) Mouth troubles: possible outcomes for three bird species with deformed bills. Revista Brasileira de Ornitologia 24: 354–357. https://doi.org/10.1007/BF03544367
Smith P, Ríos SD, Doldán L, Ruíz R (2019) Bill deformations in five species of Paraguayan birds. Revista Chilena de Ornitología 25(1): 3-8.
Speer B, Powers LV (2016) Anatomy and disorders of the beak and oral cavity of birds. Veterinary Clinics: Exotic Animal Practice 19(3): 707-736. https://doi.org/10.1016/j.cvex.2016.04.003
Valdebenito JO, Grandón-Ojeda A, Pantoja-Maggi V, Novoa FJ, González-Acuña D (2018) Report on beak abnormalities of some birds of Patagonia. The Wilson Journal of Ornithology 130(4): 1014–1019. https://doi.org/10.1676/1559-4491.130.4.1014
WikiAves (2026) WikiAves, a Enciclopédia das Aves do Brasil. En: http://www.wikiaves.com.br/. Accedido el 15/4/2026
Wioneczak G, Wioneczak MJ (2021) Caso de malformación en pico de Tucán Grande (Ramphastos toco) en Corrientes, Argentina. Nuestras Aves 66: 93-94 https://doi.org/10.56178/na.vi66.65
Zylberberg M, Van Hemert C, Dumbacher JP, Handel CM, Tihan T, DeRisi JL (2016) Novel Picornavirus associated with avian keratin disorder in Alaskan birds. mBio 7(4):e00874-16. https://doi.org/10.1128/mbio.00874-16
Zylberberg M, Van Hemert C, Handel CM, DeRisi JL (2018) Avian keratin disorder of Alaska black-capped chickadees is associated with Poecivirus infection. Virology Journal 15: 100. https://doi.org/10.1186/s12985-018-1008-5

How to cite

Nico M. Adreani (2026). Case of extreme shortening of the upper jaw in a Rufous Hornero (Furnarius rufus). Nuestras Aves, Vol. 71 (2026). https://doi.org/10.56178/na.v71i.1193

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[1] Haene EH (2025) Registro de malformación del pico en Cacholote Castaño (Pseudoseisura lophotes) en Córdoba, Argentina. Nuestras Aves 70: 165-166. https://doi.org/10.56178/na.vi70.1069

[2] Handel CM, Pajot LM, Matsuoka SM, Hemert CV, Terenzi J, Talbot SL, Mulcahy DM, Meteyer CU, Trust KA (2010) Epizootic of beak deformities among wild birds in Alaska: an emerging disease in North America? The Auk 127(4): 882-898. https://doi.org/10.1525/auk.2010.10111

[3] Magnotti J, Stahl SJ, Burrier K (2025) Mandibular prognathism correction in a juvenile Umbrella Cockatoo (Cacatua alba) with the use of an orthosis. Journal of Avian Medicine and Surgery 38(4): 219-224. https://doi.org/10.1647/AVIANMS-D-24-00016

[4] Pourlis AF (2011) Developmental malformations in avian species. Manifestations of unknown or genetic etiology-a review. Asian Journal of Animal and Veterinary Advances 6(5): 401-415. https://doi.org/10.3923/ajava.2011.401.415

[5] Sazima I, Hipolito JV, D’Angelo GB (2016) Mouth troubles: possible outcomes for three bird species with deformed bills. Revista Brasileira de Ornitologia 24: 354–357. https://doi.org/10.1007/BF03544367

[6] Smith P, Ríos SD, Doldán L, Ruíz R (2019) Bill deformations in five species of Paraguayan birds. Revista Chilena de Ornitología 25(1): 3-8.

[7] Speer B, Powers LV (2016) Anatomy and disorders of the beak and oral cavity of birds. Veterinary Clinics: Exotic Animal Practice 19(3): 707-736. https://doi.org/10.1016/j.cvex.2016.04.003

[8] Valdebenito JO, Grandón-Ojeda A, Pantoja-Maggi V, Novoa FJ, González-Acuña D (2018) Report on beak abnormalities of some birds of Patagonia. The Wilson Journal of Ornithology 130(4): 1014–1019. https://doi.org/10.1676/1559-4491.130.4.1014

[9] WikiAves (2026) WikiAves, a Enciclopédia das Aves do Brasil. En: http://www.wikiaves.com.br/. Accedido el 15/4/2026

[10] Wioneczak G, Wioneczak MJ (2021) Caso de malformación en pico de Tucán Grande (Ramphastos toco) en Corrientes, Argentina. Nuestras Aves 66: 93-94 https://doi.org/10.56178/na.vi66.65

[11] Zylberberg M, Van Hemert C, Dumbacher JP, Handel CM, Tihan T, DeRisi JL (2016) Novel Picornavirus associated with avian keratin disorder in Alaskan birds. mBio 7(4):e00874-16. https://doi.org/10.1128/mbio.00874-16

[12] Zylberberg M, Van Hemert C, Handel CM, DeRisi JL (2018) Avian keratin disorder of Alaska black-capped chickadees is associated with Poecivirus infection. Virology Journal 15: 100. https://doi.org/10.1186/s12985-018-1008-5