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The female is larger than the male. It resembles its relative in general structure. Female Barbary falcons are as large as male peregrine falcons. Adults have paler grey-blue upperparts than the peregrine falcon and often have a buff wash to the barred underparts, whereas the larger species has a whiter background colour.
The black morph is similar but has a strongly black-spotted underside, rather than finely barred as in the peregrine and the brown-morph gyrfalcon. White form gyrfalcons are the only predominantly white falcons. Silver gyrfalcons resemble a light grey lanner falcon of larger size. The species shows no sex-based colour differences; juveniles are ...
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 ]
The Barbary falcon's shoulder and pelvis bones are stout by comparison with the peregrine falcon and its feet are smaller. [37] Barbary falcons breed at different times of year than neighboring peregrine falcon subspecies, [12] [29] [30] [32] [37] [54] [55] but they are capable of interbreeding. [56]
Forest falcons are members of the genus Micrastur, part of the family Falconidae. They are endemic to the Americas , found from Mexico in the north, south through Central America and large parts of South America , and as far south as northern Argentina .
A prairie falcon in Arizona.. The prairie falcon (Falco mexicanus) is a medium-sized falcon found in Western North America.A separate species from the peregrine falcon, with which it shares some visual similarities, the prairie falcon is, essentially, an arid-climate divergence of earlier peregrine falcon lineage.
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Falconidae is a family of diurnal birds of prey and includes caracaras, laughing falcon, forest falcons, falconets, pygmy falcons, falcons and kestrels.They are small to medium-sized birds of prey, ranging in size from the black-thighed falconet, which can weigh as little as 35 grams (1.2 oz), to the gyrfalcon, which can weigh as much as 1,735 grams (61.2 oz).