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The Hawaiian hawk or ʻio (Buteo solitarius) is a raptor in the genus Buteo endemic to Hawaiʻi, currently restricted to the Big Island.The ʻio is one of two extant birds of prey that are native to Hawaiʻi, the other being the pueo (Hawaiian short-eared owl) and fossil evidence indicates that it inhabited the island of Hawaiʻi, Molokaʻi, Oʻahu, Maui and Kauaʻi at one time. [3]
Buteo is a genus of medium to fairly large, wide-ranging raptors with a robust body and broad wings. In the Old World, members of this genus are called "buzzards", but "hawk" is used in the New World (Etymology: Buteo is the Latin name of the common buzzard [1]).
The red-tailed hawk is probably the most common hawk in North America. [ 21 ] Past observations have indicated that, while hawks can easily adapt to most environments, they prefer open habitats such as deserts and fields, likely because it is easier to spot prey.
The distinctive plumage and tail feathers clearly confirm that this is a Harris's hawk. This medium-large hawk is roughly intermediate in size between a peregrine falcon (Falco peregrinus) and a red-tailed hawk (Buteo jamaicensis). Harris's hawks range in length from 46 to 59 cm (18 to 23 in) and generally have a wingspan of about 103 to 120 cm ...
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The ferruginous hawk is a well-regarded falconry bird, though not recommended for beginners due to its large size, power, and aggressive personality. [45] For the experienced falconer it offers an opportunity to experience the nearest equivalent to hunting with the golden eagle with much lower risk of injury to the falconer by the hawk.
This sexual difference in size is most pronounced in active species that hunt birds, such as the Accipiter hawks, in which the size difference averages 25–50%. In a majority of species, such as generalist hunters and rodent -, reptile -, fish -, and insect -hunting specialists, the dimorphism is less, usually between a 5% to 30% size difference.
Mean prey weights in different areas for great horned owls can vary from 22.5 to 610.4 g (0.79 to 21.53 oz), so is far more variable than that of red-tailed hawks (at 43.4 to 361.4 g (1.53 to 12.75 oz)) and can be much larger (by about 45%) than the largest estimated size known for the red-tailed hawk's mean prey weight but conversely the owl ...