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The peregrine falcon has a body length of 34 to 58 cm (13–23 in) and a wingspan from 74 to 120 cm (29–47 in). [11] [20] The male and female have similar markings and plumage but, as with many birds of prey, the peregrine falcon displays marked sexual dimorphism in size, with the female measuring up to 30% larger than the male. [21]
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 shaheen falcon (Falco peregrinus peregrinator) is a non-migratory subspecies of the peregrine falcon found in southern Asia from India and Sri Lanka east to southeastern China. [ 2 ] [ 3 ] It has also been described as a migratory subspecies. [ 4 ]
Peale's falcon concentrates on hunting Alcids, often nesting very near seabird colonies for this purpose.However, this is not necessary for a successful eyrie.A study on Amchitka Island from 1968 to 1973 found that an average of 18.6 eyries on the island were in no close proximity to seabird colonies, as no sizeable colonies existed on the island. [3]
A peregrine falcon hatched in 2023 in Port Washington was found in December in Nicaragua, after a journey of more than 2,000 miles. ... "Pete," a female peregrine falcon hatched and fledged in ...
A prairie falcon in Arizona. The prairie falcon (Falco mexicanus) is a medium-large sized falcon of western North America.It is about the size of a peregrine falcon or a crow, with an average length of 40 cm (16 in), wingspan of approximately 1 meter (40 in), and average weight of 720 g (1.6 lb).
The peregrine falcon was removed from the federal endangered species list in 1999 although it continues to be protected under the federal Migratory Bird Treaty Act. It is still listed as a species ...
Some sources give the etymology as deriving from the fact that a male falcon is about one-third smaller than a female [18] [19] [20] (Old French: tiercelet). A falcon chick, especially one reared for falconry, still in its downy stage, is known as an eyas [21] [22] (sometimes spelled eyass).