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in general, any bird that impales its prey (small vertebrates, large insects) on a thorn or wedges it into a crack or a forked twig in order to tear it or, sometimes, to store it. The name is given to the Lanius species (see shrike) of the family Laniidae and in Australia to the four to seven species of Cracticus; these are contrastingly patterned (usually black-gray-white) members of the family Cracticidae (order Passeriformes). Cracticus species are stocky, about 28 cm (11 inches) long, with big feet and heavy, hook-tipped bills. Year-round, pairs defend their territory-they may attack humans-and sing beautiful duets. A familiar species is the gray butcherbird (C. torquatus).