Mice are prolific breeders.

鼠类繁殖力很强。

Most breeders now will not sell unweaned mynahs, so usually you cannot get one younger than 6 or 7 weeks old now, but that is still plenty young enough to begin training your mynah.

许多饲养者不买未断奶鹩哥宝宝，那你一法得到于6到7周鸟，但训练鹩哥这个年龄已经够了。