Animalia > Chordata > Aves > Galliformes > Cracidae > Oreophasis > Oreophasis derbianusOreophasis derbianus (Horned Guan)Language: Spanish The horned guan (Oreophasis derbianus) is a large, approximately 85 cm long, turkey-like bird with glossed black upperparts plumage, red legs, white iris, yellow bill and a red horn on top of head. The breast and upper belly are white, and its long tail feathers are black with white band near base. Both sexes are similar. The young is duller with smaller horn, and has brown tail and wings. |
Uniqueness Scale: Similiar (0) Unique (100) Uniqueness & Vulnerability Scale: Similiar & Secure (0) Unique & Vulnerable (100) ED Score: 12.4213 EDGE Score: 4.67628 |
Adult Weight [1] | 4.572 lbs (2.074 kg) | Female Weight [1] | 4.246 lbs (1.926 kg) | Male Weight [1] | 4.899 lbs (2.222 kg) | Weight Dimorphism [1] | 15.4 % |  | Breeding Habitat [2] | Tropical cloud forests | Wintering Geography [2] | Non-migrartory | Wintering Habitat [2] | Tropical cloud forests |  | Diet [3] | Frugivore, Herbivore | Diet - Fruit [3] | 50 % | Diet - Plants [3] | 50 % | Forages - Mid-High [3] | 80 % | Forages - Ground [3] | 20 % |  | Clutch Size [4] | 2 | Incubation [4] | 34 days | Snout to Vent Length [1] | 31 inches (80 cm) |
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Name |
Countries |
Ecozone |
Biome |
Species |
Report |
Climate |
Land Use |
Central American montane forests |
Mexico, Guatemala, El Salvador, Honduras, Nicaragua |
Neotropic |
Tropical and Subtropical Moist Broadleaf Forests |
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Central American pine-oak forests |
Mexico, Guatemala, Honduras, El Salvador, Nicaragua |
Neotropic |
Tropical and Subtropical Coniferous Forests |
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Name |
Location |
IBA Criteria |
Website |
Climate |
Land Use |
Antigua Guatemala |
Guatemala |
A1, A2, A3 |
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Atitlan |
Guatemala |
A1, A2, A3 |
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Cerro El Amay |
Guatemala |
A1, A3 |
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Cuchumatanes |
Guatemala |
A1, A2, A3 |
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Santiaguito Volcano |
Guatemala |
A1, A2, A3 |
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Sierra de las Minas-Motagua |
Guatemala |
A1, A2, A3 |
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Tacana-Tajumulco |
Guatemala |
A1, A2 |
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Name |
Location |
Endemic |
Species |
Website |
Mesoamerica |
Belize, Costa Rica, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, Panama |
Yes |
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 Attributes / relations provided by ♦ 1Nathan P. Myhrvold, Elita Baldridge, Benjamin Chan, Dhileep Sivam, Daniel L. Freeman, and S. K. Morgan Ernest. 2015. An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles. Ecology 96:3109 ♦ 2Partners in Flight Avian Conservation Assessment Database, version 2017. Accessed on January 2018. ♦ 3Hamish Wilman, Jonathan Belmaker, Jennifer Simpson, Carolina de la Rosa, Marcelo M. Rivadeneira, and Walter Jetz. 2014. EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95:2027 ♦ 4Horned Guan, BirdLife International (1992) Threatened Birds of the Americas. Cambridge, UK: BirdLife International. ♦ 5Conserving Cracids: The most Threatened Family of Birds in the Americas, Edited by Daniel M. Brooks,
Miscellaneous Publications of The Houston Museum of Natural Science, Number 6 (2006) ♦ 6González-García, F. 1994. Behavior of Horned Guans in Chiapas, Mexico Wilson Bull. 106: 357–365 Ecoregions provided by World Wide Fund For Nature (WWF). WildFinder: Online database of species distributions, ver. 01.06 Wildfinder Database |
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0
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