Hawk
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The term hawk can be uised in mony ways:
- In strict uisage in Australie an Africae, tae mean ony o the species in the subfamily Accipitrinaethat whilk is makkit up o the genera Accipiter, Micronisus, Melierax, Urotriorchis an Megatriorchis. The muckle an widespreid Accipiter genus includes gosses, Spur-hawks, the Shairp-shinnit Hawk an ithers. Thir is mainly widland birds wi lang tails an heich visual acuity, huntin bi suddent dashes frae a concealed perch.
- Mair generally (especially in North Americae) tae mean faucons or sma tae middlin-sized members o the Accipitridae—the faimily that includes the "true hawks" as weel as eagles, gleds, herry-hawks an bizzarts.
- Lowsely, tae mean awmaist ony bird o prey ootside o the order Strigiformes (ouls).
The common names o birds in sindry pairts o the warld aften uises hawk in the seicont sense. For example, the Osprey or "fish hawk"; or, in North Americae, the mony Buteo species (e.g., the Reid-tailed Hawk, B. jamaicensis).
In Februar 2005, the Canadae ornithologist Louis Lefebvre annoonced a method o meisurin avian "IQ" in terms o thair innovation in feedin haunts.[1] Hawks wis named amang the maist intelligent birds based on his scale. Hawks are widely reputit tae hae visual acuity mony times that o a normal human bein. This is owin tae the mony photoreceptors in the retina (up tae 1,000,000 per square mm for Buteo, agin 200,000 for humans), an exceptional nummer o nerves connectin thir receptors tae the harns, an indentit fovea that magnifies the central portion o the visual field.[2][3]
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