<em>Owls, </em><em>birds</em><em> of the </em><em>order</em><em> Strigiformes, include about 200 </em><em>species</em><em> of mostly </em><em>solitary</em><em> and </em><em>nocturnal</em><em> </em><em>birds of prey</em><em> typified by an upright stance, a large, broad head, binocular vision and binaural hearing, and feathers adapted for silent flight. Exceptions include the diurnal </em><em>northern hawk-owl</em><em> and the gregarious </em><em>burrowing owl</em><em>.</em><em>Owls hunt mostly small </em><em>mammals</em><em>, </em><em>insects</em><em>, and other birds, although a few species specialize in hunting </em><em>fish</em><em>. They are found in all regions of the Earth except </em><em>Antarctica</em><em> and some remote islands.</em>
<em>Owls are divided into two </em><em>families</em><em>: the </em><em>true owls</em><em>, Strigidae; and the </em><em>barn-owls</em><em>, Tytonidae.</em>
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