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The Strigiformes (Owls) are an order of birds of prey,comprising 200 extant species.Most are solitary,and nocturnal,with some exceptions (e.g.the Burrowing Owl).Owls mostly hunt small mammals,insects,and other birds,though a few species specialize in hunting fish.They are found in all regions of the Earth except Antarctica,most of Greenland,and some remote islands.Though owls are typically solitary,the literary collective noun for a group of owls is a parliament.The living owls are divided into two families,the typical owls,Strigidae,and the barn-owls,Tytonidae您上这个网站看看吧!http://en.wikipedia.org/wiki/Owl
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