羽区，鸟类羽毛在体表着生的一定区域.不生羽毛的地方称裸区.羽毛的这种着生方式，有利于剧烈的飞翔运动.鸵鸟、企鹅等不会飞翔的鸟类，羽毛在体表连续生长，无羽区、裸区之分.大多数鸟类的羽毛仅在羽区内生长.裸区一般都被邻近羽区的廓羽所覆盖.由嘴基到头顶及连接着背区的部位为头部羽区；接下去直到尾上覆羽为背部羽区.肩部羽区比较窄.股部羽区也较窄，从股部沿着胁部伸向尾部.由翅的飞羽和覆羽组成翼羽区.尾羽、尾覆羽、肛周羽和尾脂腺上羽毛构成尾羽区.分叉分布的体下羽毛构成腹部羽区.相 关 词 条:动物 |鸵鸟 |太平鸟 |GOOGLE英文翻译:Bird feathers in the hygiene of a certain surface area. Does not of Health said the bare area where feathers. Feathers the health of this approach is conducive to intense flight campaign. Ostriches， penguins and other birds will not fl