Animalia > Chordata > Aves > Passeriformes > Corvidae > Corvus > Corvus hawaiiensis

Corvus hawaiiensis (Hawaiian Crow; 'Alala)

Synonyms: Corvus tropicus

Wikipedia Abstract

The Hawaiian crow or ʻalalā (Corvus hawaiiensis) is a species of bird in the crow family, Corvidae, that is currently extinct in the wild. It is about the size of the carrion crow at 48–50 centimetres (19–20 in) in length, but with more rounded wings and a much thicker bill. It has soft, brownish-black plumage and long, bristly throat feathers; the feet, legs and bill are black. Today, the Hawaiian crow is considered the most endangered of the family Corvidae. They are recorded to have lived up to 18 years in the wild, and 25 years in captivity. Some Native Hawaiians consider the Hawaiian crow an ʻaumakua (family god).
View Wikipedia Record: Corvus hawaiiensis

Endangered Species

Status: Extinct in the wild
View IUCN Record: Corvus hawaiiensis

EDGE Analysis

Uniqueness Scale: Similiar (0) 
1
 Unique (100)
Uniqueness & Vulnerability Scale: Similiar & Secure (0) 
56
 Unique & Vulnerable (100)
ED Score: 3.87753
EDGE Score: 4.35723
Learn more at EDGE of Existence programme

Attributes

Adult Weight [1]  1.146 lbs (520 g)
Female Weight [4]  1.069 lbs (485 g)
Male Weight [1]  1.224 lbs (555 g)
Weight Dimorphism [1]  14.4 %
Diet [2]  Carnivore (Invertebrates), Carnivore (Vertebrates), Frugivore, Nectarivore, Granivore
Diet - Endothermic [2]  10 %
Diet - Fruit [2]  40 %
Diet - Invertibrates [2]  30 %
Diet - Nectar [2]  10 %
Diet - Seeds [2]  10 %
Forages - Canopy [2]  20 %
Forages - Mid-High [2]  20 %
Forages - Understory [2]  10 %
Forages - Ground [2]  50 %
Female Maturity [3]  2 years
Male Maturity [3]  4 years
Clutch Size [5]  5
Clutches / Year [3]  1
Incubation [3]  20 days
Mating Display [6]  Ground and non-acrobatic aerial display
Maximum Longevity [3]  25 years
Snout to Vent Length [1]  19 inches (49 cm)

Ecoregions

Name Countries Ecozone Biome Species Report Climate Land
Use
Hawaii tropical dry forests United States Oceania Tropical and Subtropical Dry Broadleaf Forests  
Hawaii tropical high shrublands United States Oceania Tropical and Subtropical Grasslands, Savannas, and Shrublands
Hawaii tropical low shrublands United States Oceania Tropical and Subtropical Grasslands, Savannas, and Shrublands
Hawaii tropical moist forests United States Oceania Tropical and Subtropical Moist Broadleaf Forests  

Protected Areas

Name IUCN Category Area acres Location Species Website Climate Land Use
Hawaii Volcanoes National Park 177278 Hawaii, United States
Hawaiian Islands Biosphere Reserve 245981 Hawaii, United States  
Kaloko-Honokohau National Historical Park   Hawaii, United States

Alliance for Zero Extinction (AZE) Sites

Name  Location   Map   Climate   Land Use 
Hakalau Forest National Wildlife Refuge United States

Biodiversity Hotspots

Name Location Endemic Species Website
Polynesia-Micronesia Fiji, Micronesia, Polynesia, Samoa, Tonga, United States Yes

External References

NatureServe Explorer

Audio

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Provided by Center for Biological Diversity via Myxer Author: David Kuhn

Citations

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
♦ 2Hamish 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
♦ 3de Magalhaes, J. P., and Costa, J. (2009) A database of vertebrate longevity records and their relation to other life-history traits. Journal of Evolutionary Biology 22(8):1770-1774
♦ 4Banko, P. C., D. L. Ball, and W. E. Banko. 2002. Hawaiian Crow (Corvus hawaiiensis). In The Birds of North America., No. 648. (A. Poole and F. Gill, eds.). The Birds of North America, Inc., Philadelphia, PA.
♦ 5Jetz 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
♦ 6Terje Lislevand, Jordi Figuerola, and Tamás Székely. 2007. Avian body sizes in relation to fecundity, mating system, display behavior, and resource sharing. Ecology 88:1605
Ecoregions provided by World Wide Fund For Nature (WWF). WildFinder: Online database of species distributions, ver. 01.06 Wildfinder Database
Biodiversity Hotspots provided by Critical Ecosystem Partnership Fund
AZE sites provided by Alliance for Zero Extinction (2010). 2010 AZE Update.
Abstract provided by DBpedia licensed under a Creative Commons License
Audio software provided by SoundManager 2
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