> Buteo solitarius
Buteo solitarius (Hawaiian Hawk; Lo)
The Hawaiian Hawk or ʻIo (Buteo solitarius) is a raptor of the Buteo genus endemic to Hawaiʻi. Buteos tend to be easily recognized by their bulky bodies relative to their overall length and wingspan. The ʻIo is the only hawk that is native to Hawaiʻi, and fossil evidence indicates that it inhabited the island of Hawaiʻi, Molokaʻi, Oʻahu, and Kauaʻi at one time. Today, it is known to breed only on the Big Island in stands of native ʻōhiʻa lehua trees.
Uniqueness Scale: Similiar (0)
Uniqueness & Vulnerability Scale: Similiar & Secure (0)
Unique & Vulnerable (100)
|Adult Weight  ||1.11 lbs (505 g)|
|Birth Weight  ||35 grams|
|Male Weight  ||414 grams|
|Clutch Size  ||2|
|Incubation  ||38 days|
|Maximum Longevity  ||17 years|
Fiji, Micronesia, Polynesia, Samoa, Tonga, United States
Institutions (Zoos, etc.)
|Play / Pause||Volume|
Species recognized by Peterson A.P., 2011-09-22, in
Attributes / relations provided by ♦ 1
de 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 ♦ 2
Jetz 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 ♦ 3
Clarkson, KE and LP Laniawe. 2000. Hawaiian Hawk (Buteo solitarius). In A. Poole and F. Gill [eds.], The birds of North
America, No. 523. The Birds of North America, Inc., Philadelphia, PA.
Ecoregions provided by World Wide Fund For Nature (WWF). WildFinder: Online database of species distributions, ver. 01.06 gis.wwfus.org/wildfinder