推荐回答（4个）
猫头鹰，捉老鼠，保护庄稼。
啄木鸟，吃虫子，保护树木。
蜜蜂，传播花粉，是植物产生种子。
蜻蜓，捉蚊子，保护人们。
鸮形目中的鸟被叫做猫头鹰，总数超过130余种。在除南极洲以外所有的大洲都有分布。大部分的种为夜行性肉食性动物。该目鸟类头宽大，嘴短而粗壮前端成钩状，头部正面的羽毛排列成面盘，部分种类具有耳状羽毛。双目的分布，面盘和耳羽使本目鸟类的头部与猫极其相似.
啄木鸟头亦大，但颈较长，嘴强硬而直，呈凿形，舌长而能伸缩，先端列生短钩；脚稍短，具3或4趾；尾呈平尾或楔状，羽干坚硬富有弹性，在啄木时支撑身体。
蜜蜂属膜翅目、蜜蜂科。是一种会飞行的群居昆虫，它们被称为资源昆虫。
蜻蜓一般体型较大，翅长而窄，膜质，网状翅脉极为清晰。
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