female bird meaning in Chinese

母禽

Female birds have a special type of bone , called a medullary bone , that grows in their limbs when they are laying eggs , forming a layer inside the hard outer bone
骨髓骨富含形成卵壳的钙元素。当雌鸟进入孵卵期时，骨髓骨开始在翼处发育，并在坚硬的翼骨外层下形成一层。
The results were as follows ( 1 ) with the melopsitiacus undelafusp growing up the scale of song is more complex and higher ( 2 ) during this course , it can he seen the more complex song of male birds than female bird , but the scale is not higher
结果发现： ( 1 )随着虎皮鹦鹉的成长，叫声越来越复杂，幅度越来越高； ( 2 )在成长的过程中，雄鸟比雌鸟的叫声更复杂，但幅度不如雌鸟的高。