The most common species of bird is Gallus gallus, the domestic chicken.

最常见的鸟类是原鸡，一种家养的鸡。

You are like, " Yeah I'm gallus, man" .

这个时候你就会说，" 哦我可真牛啊。"

Then Pa got for himself a pair of galluses and some tobacco to smoke in his pipe.

然后爸爸给自己买了一双鸡腿和一些烟斗里的烟草。