Animalia > Chordata > Aves > Passeriformes > Corvidae > Corvus > Corvus hawaiiensis| | Corvus hawaiiensis (Hawaiian Crow; 'Alala) | |
Synonyms: Corvus tropicus 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). |
Uniqueness Scale: Similiar (0) Unique (100) Uniqueness & Vulnerability Scale: Similiar & Secure (0) Unique & Vulnerable (100) ED Score: 3.87753 EDGE Score: 4.35723 |
| 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) |
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Alliance for Zero Extinction (AZE) Sites |
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Location |
Endemic |
Species |
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Polynesia-Micronesia |
Fiji, Micronesia, Polynesia, Samoa, Tonga, United States |
Yes |
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Institutions (Zoos, etc.) |
 MapsOceania; | Play / Pause |  | Volume |  |
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 WWF WildFINDER |
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