In the bird, seems to be somehow encoded so that when they imitate sounds, they'll shift them to where some kind of an internal image that they have of how a good zebra finch song should be like.

鸟类体中，似乎有某种密码，当它们模仿某些声音时，它们能将密码转换成某种内影像，也就是珍珠鸟好听鸣叫声的样子。