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Birds of prey or predatory birds, ... In non-predatory birds, males are typically larger than females. However, in birds of prey, the opposite is the case.
Most accipitrids exhibit sexual dimorphism in size, although, unusually for birds, it is the females that are larger than the males. [22] 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%.
The females is noticeably larger, with the adult male weighing 136–252 g (4 + 3 ⁄ 4 – 8 + 7 ⁄ 8 oz), around 155 g (5 + 1 ⁄ 2 oz) on average; the adult female weighs 154–314 g (5 + 3 ⁄ 8 – 11 + 1 ⁄ 8 oz), around 184 g (6 + 1 ⁄ 2 oz) on average. They are thus small compared with other birds of prey, but larger than most songbirds.
As with hawks and owls, falcons exhibit sexual dimorphism, with the females typically larger than the males, thus allowing a wider range of prey species. [10] As is the case with many birds of prey, falcons have exceptional powers of vision; the visual acuity of one species has been measured at 2.6 times that of human eyes. [11]
They have long legs and long, sharp talons used to kill their prey, and a sharp, hooked bill used in feeding. Females tend to be larger than males. They often ambush their prey, mainly small birds and mammals, capturing them after a short chase. The typical flight pattern is a series of flaps followed by a short glide.
Hence there is a theoretical expectation that females tend to be larger in species that are monogamous. Females are larger in many species of insects, many spiders, many fish, many reptiles, owls, birds of prey and certain mammals such as the spotted hyena, and baleen whales such as blue whale. As an example, in some species, females are ...
Both males and females show considerable nomadism. [25] Unlike most birds of prey, they are capable of raising multiple broods in a year, and young birds are known to disperse widely, adaptations that helps them utilize periodic rodent population surges. [28] Their opportunistic breeding capabilities are also accompanied by irregular patterns ...
A vulture is a bird of prey that scavenges on carrion.There are 23 extant species of vulture (including condors). [2] Old World vultures include 16 living species native to Europe, Africa, and Asia; New World vultures are restricted to North and South America and consist of seven identified species, all belonging to the Cathartidae family.