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The red-tailed hawk is now placed in the genus Buteo that was erected by French naturalist Bernard Germain de Lacépède in 1799. [15] [16] In flight showing the red tail A red-tailed hawk hovers in the wind. The red-tailed hawk is a member of the subfamily Buteoninae, which includes about 55 currently recognized species.
The western red-tailed hawk (Buteo jamaicensis calurus) [1] is a subspecies of the red-tailed hawk. Description.
Red-shouldered hawk taking flight at Green Cay Wetlands, Florida. Males are 38 to 58 cm (15 to 23 in) long and weigh on average 550 g (1.21 lb). Females are slightly larger at 47 to 61 cm (19 to 24 in) in length and a mean weight of 700 g (1.5 lb).
While similar in linear dimensions to the western red-tailed hawk (B. j. calurus), this race is sometimes described as slighter and lighter. [2] On the contrary, though, they are highly sexually dimorphic in size (the most dimorphic of any in the United States) and mature females are sometimes more massive than almost any female B. j. calurus. [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]).
A baby red-tailed hawk, right, was plucked by bald eagle parents and is now sharing a nest in San Simeon with two eaglets, seen on May 21, 2024.
This is a large-bodied, relatively heavy race, but differs from more westerly hawks in having a relatively smaller wing area. Based on linear dimensions, this subspecies shows the most size variation and, unlike the red-tailed hawk species overall, size variation seems to fall within Bergmann's rule as northern birds average larger than southern ones.
The southwestern red-tailed hawk (Buteo jamaicensis fuertesi) [1] is a subspecies of red-tailed hawk that breeds from northern Chihuahua to southern Texas. It winters in Arizona , New Mexico and southern Louisiana . [ 2 ]