Well, I'm still feeling a little homesick and so many things seem strange to me.
噢,我还感到有点想家。而且这里的很多东西我还不习惯。
This is because they had no natural enemies until the arrival of humans and therefore did not need to develop flying wings.
这是因为人类到达这里之前,这些鸟没有天敌,因此,它们不需要发育飞行的翅膀。