与杂食性鸡类、食虫鸟类及猛禽比较，勺鸡的消化系统具有典型植食性鸟类的特征。
Compared with omnivorous pheasants, insectivorous birds and raptorial birds Koklass's digestive system is similar to the typical phytophagous birds.
如在西班牙发现的这种，大部分兽脚类恐龙都是肉食者，也有一些是杂食者。
Most theropods, like the one found in Spain, are meat-eaters, though some were omnivores.
杂食性，以植物及小动物为食，在饲养条件下也吃小型甲壳动物，并可用剁碎的蚊类幼虫、谷类和其它食物作为补充饲料。
They feed on plants and small animals and, in captivity, on small crustaceans and other foods. They have become naturalized in many parts of the eastern U. S.
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