Animalia > Chordata > Aves > Craciformes > Cracidae > Crax > Crax blumenbachii

Crax blumenbachii (Red-knobbed Curassow; Red-billed Curassow)

Wikipedia Abstract

The Red-knobbed Curassow or Red-billed Curassow, Crax blumenbachii, is an endangered species of Cracid that is endemic to lowland Atlantic Forest in the states of Espírito Santo, Bahia and Minas Gerais in southeastern Brazil. Its population is decreasing due to hunting and deforestation, and it has possibly been extirpated from Minas Gerais. It is currently being reintroduced to Rio de Janeiro by means of individuals bred in captivity.
View Wikipedia Record: Crax blumenbachii

Endangered Species

Status: Endangered
View IUCN Record: Crax blumenbachii

EDGE Analysis

Uniqueness Scale: Similiar (0) 
 Unique (100)
Uniqueness & Vulnerability Scale: Similiar & Secure (0) 
 Unique & Vulnerable (100)
ED Score: 4.17596
EDGE Score: 3.72347


Clutch Size [2]  2
Incubation [1]  28 days


Name Countries Ecozone Biome Species Report Climate Land
Bahia coastal forests Brazil Neotropic Tropical and Subtropical Moist Broadleaf Forests
Bahia interior forests Brazil Neotropic Tropical and Subtropical Moist Broadleaf Forests

Protected Areas

Name IUCN Category Area acres Location Species Website Climate Land Use
Discovery Coast Atlantic Forest Reserves World Heritage Site 276585 Brazil  
Linhares State Forest Reserve   Brazil      
Monte Pascoal National Park II 63012 Bahia, Brazil  
Rio Doce State Park 14703 Minas Gerais, Brazil  

Important Bird Areas

BirdLife Species Factsheet: View Factsheet
Name Location  IBA Criteria   Website   Climate   Land Use 
Baixo-Sul Brazil A1, A2
Parque Estadual do Rio Doce Brazil A1
Parque Nacional de Monte Pascoal Brazil A1, A2
Parque Nacional do Descobrimento Brazil A1
Sooretama / Linhares Brazil A1, A2, A3
Una Brazil A1, A2, A3

Biodiversity Hotspots

Name Location Endemic Species Website
Atlantic Forest Argentina, Brazil, Paraguay, Uruguay Yes

Prey / Diet

Lecythis pisonis (Cream nut)[1]
Virola bicuhyba[1]

Prey / Diet Overlap

Competing SpeciesCommon Prey Count
Lipaugus lanioides (Cinnamon-vented Piha)1
Procnias nudicollis (Bare-throated Bellbird)1
Pyroderus scutatus (Red-ruffed Fruitcrow)1

Institutions (Zoos, etc.)

Institution Infraspecies / Breed 
Burger's Zoo
Fundacao Parque Zoologico de Sao Paulo
North of England Zoological Society
Parque Ornitologico de Lourosa
Zoo of Antwerp

Range Map



Species recognized by Peterson A.P., 2007-01-23, ITIS Global: The Integrated Taxonomic Information System in Catalog of Life 2011
Endangered Status provided by IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2 <> Downloaded on 11 April 2013.
Attributes / relations provided by 1Red-billed Curassow, BirdLife International (1992) Threatened Birds of the Americas. Cambridge, UK: BirdLife International. 2Jetz W, Sekercioglu CH, Böhning-Gaese K (2008) The Worldwide Variation in Avian Clutch Size across Species and Space PLoS Biol 6(12): e303. doi:10.1371/journal.pbio.0060303
Ecoregions provided by World Wide Fund For Nature (WWF). WildFinder: Online database of species distributions, ver. 01.06
Protected Areas provided by Le Saout, S., Hoffmann, M., Shi, Y., Hughes, A., Bernard, C., Brooks, T.M., Bertzky, B., Butchart, S.H.M., Stuart, S.N., Badman, T. & Rodrigues, A.S.L. (2013) Protected areas and effective biodiversity conservation. Science, 342, 803–805 Biological Inventories of the World's Protected Areas in cooperation between the Information Center for the Environment at the University of California, Davis and numerous collaborators.
Biodiversity Hotspots provided by Critical Ecosystem Partnership Fund
Important Bird Areas provided by BirdLife International (2010) Important Bird Areas. Downloaded from on 29/12/2010
Images provided by Google Image Search
Abstract provided by DBpedia licensed under a Creative Commons License
EDGE analysis provided by EDGE of Existence programme, Zoological Society of London
Range map provided by Ridgely, R. S., T. F. Allnutt, T. Brooks, D. K. McNicol, D. W. Mehlman, B. E. Young, and J. R. Zook. 2007. Digital Distribution Maps of the Birds of the Western Hemisphere, version 3.0. NatureServe, Arlington, Virginia, USA.
Data provided by NatureServe in collaboration with Robert Ridgely, James Zook, The Nature Conservancy - Migratory Bird Program, Conservation International - CABS, World Wildlife Fund - US, and Environment Canada - WILDSPACE.
Weather provided by NOAA METAR Data Access
Institution information provided by International Species Information System - May 2011