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The common kestrel (Falco tinnunculus) is a bird of prey species belonging to the kestrel group of the falcon family Falconidae. It is also known as the European kestrel, Eurasian kestrel, or Old World kestrel. In the United Kingdom, where no other kestrel species commonly occurs, it is generally just called "kestrel". This species occurs over a large range. It is widespread in Europe, Asia, and Africa, as well as occasionally reaching the east coast of North America. It has colonized a few oceanic islands, but vagrant individuals are generally rare; in the whole of Micronesia for example, the species was only recorded twice each on Guam and Saipan in the Marianas. Taxonomy The common kestrel was formally described in 1758 by the Swedish naturalist Carl Linnaeus in the tenth edition of his Systema Naturae under the current binomial name Falco tinnunculus. Linnaeus specified the type location as Europe but restricted this to Sweden in 1761. The genus name is Late Latin from falx, falcis, a sickle, referencing the claws of the bird. The species name tinnunculus is Latin for "kestrel" from "tinnulus", "shrill". The Latin name tinnunculus had been used by the Swiss naturalist Conrad Gessner in 1555. The word "kestrel" is derived from the French crécerelle which is diminutive for crécelle, which also referred to a bell used by lepers. The word is earlier spelt 'c/kastrel', and is evidenced from the 15th century. The kestrel was once used to drive and keep away pigeons. Archaic names for the kestrel include windhover and windfucker, due to its habit of beating the wind (hovering in air). This species is part of a clade that contains the kestrel species with black malar stripes, a feature which apparently was not present in the most ancestral kestrels. They seem to have radiated in the Gelasian (Late Pliocene, roughly 2.5–2 mya, probably starting in tropical East Africa, as indicated by mtDNA cytochrome b sequence data analysis and considerations of biogeography. A molecular phylogenetic study published in 2015 found that the common kestrel's closest relatives were the spotted kestrel Falco moluccensis and the Nankeen kestrel Falco cenchroides. The rock kestrel (F. rupicolus), previously considered a subspecies, is now treated as a distinct species. The lesser kestrel (F. naumanni), which much resembles a small common kestrel with no black on the upperside except wing and tail tips, is probably not very closely related to the present species, and the American kestrel (F. sparverius) is apparently not a true kestrel at all. Both species have much grey in their wings in males, which does not occur in the common kestrel or its close living relatives but does in almost all other falcons. Subspecies Eleven subspecies are recognised. Most differ little, and mainly in accordance with Bergmann's and Gloger's rules. Tropical African forms have less grey in the male plumage. F. t. tinnunculus Linnaeus, 1758 – temperate areas of Europe, North Africa, the Middle East, and Asia north of the Hindu Kush-Himalaya mountain ranges to the NW Sea of Okhotsk region. Northern Asian populations migrate south in winter, apparently not crossing the Himalayas but diverting to the west. F. t. perpallidus (Clark, AH, 1907) – northeast Siberia to northeast China and Korea Peninsula F. t. interstinctus McClelland, 1840 – breeds East Asia from Tibet to Korea and Japan, south into Indochina. Winters to the south of its breeding range, from northeastern India to the Philippines (where it is localized, e.g. from Mindanao only two records exist). Has dark heavily marked birds and has a foxed red phase but not reliably identified in the field. F. t. objurgatus (Baker, ECS, 1929) – Western, Nilgiris and Eastern Ghats of India; Sri Lanka. Heavily marked, has rufous thighs with dark grey head in males. F. t. canariensis (Koenig, 1890) – Madeira and western Canary Islands F. t. dacotiae Hartert, EJO, 1913 – eastern Canary Islands: Fuerteventura, Lanzarote, Chinijo Archipelago. F. t. neglectus Schlegel, 1873 – northern Cape Verde Islands F. t. alexandri Bourne, 1955 – southwestern Cape Verde Islands. F. t. rupicolaeformis (Brehm, CL, 1855) – Arabian Peninsula except in the desert and across the Red Sea into Africa F. t. archerii (Hartert, EJO & Neumann, 1932) – Somalia, coastal Kenya, and Socotra F. t. rufescens Swainson, 1837 – Sahel east to Ethiopia, southwards around Congo basin to south Tanzania and northeast Angola. The common kestrels of Europe living during cold periods of the Quaternary glaciation differed slightly in size from the current population; they are sometimes referred to as the paleosubspecies F. t. atavus (see also Bergmann's rule). The remains of these birds, which presumably were the direct ancestors of the living F. t. tinnunculus (and perhaps other subspecies), are found throughout the then-unglaciated parts of Europe, from the Late Pliocene (ELMA Villanyian/ICS Piacenzian, MN16) about 3 million years ago to the Middle Pleistocene Saalian glaciation which ended about 130,000 years ago, when they finally gave way to birds indistinguishable from those living today. Some of the voles the Ice Age common kestrels ate—such as European pine voles (Microtus subterraneus)—were indistinguishable from those alive today. Other prey species of that time evolved more rapidly (like M. malei, the presumed ancestor of today's tundra vole M. oeconomus), while yet again others seem to have gone entirely extinct without leaving any living descendants—for example Pliomys lenki, which apparently fell victim to the Weichselian glaciation about 100,000 years ago. Description The common kestrels measures 32–39 cm (12+1⁄2–15+1⁄2 in) from head to tail, with a wingspan of 65–82 cm (25+1⁄2–32+1⁄2 in). 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. Like the other Falco species, they have long wings as well as a distinctive long tail. The plumage is mainly light chestnut brown with blackish spots on the upperside and buff with narrow blackish streaks on the underside; the remiges are also blackish. Unlike most raptors, they display sexual colour dimorphism with the male having fewer black spots and streaks, as well as a blue-grey cap and tail. The tail is brown with black bars in females, and has a black tip with a narrow white rim in both sexes. All common kestrels have a prominent black malar stripe like their closest relatives. The cere, feet, and a narrow ring around the eye are bright yellow; the toenails, bill and iris are dark. Juveniles look like adult females, but the underside streaks are wider; the yellow of their bare parts is paler. Hatchlings are covered in white down feathers, changing to a buff-grey second down coat before they grow thei.... Discover the James Kestrel popular books. Find the top 100 most popular James Kestrel books.