A: I’ll pick you up at 5:30 in the morning. Make sure you get up in time.
B: Don’t worry I’m a morning lark. I’ll be up and ready by then.

Lark [lɑ:rk]
云雀，百灵鸟

Morning Lark
早鸟，早起的人

Being a morning lark is good for your health. Plus you get so much done when you get up early.
早起对你的健康有好处。而且早起可以做更多事。

I wasn't always a morning lark. Before I started working, I'd sleep at 3 in the morning.
我不总是起得很早。我工作之前早上3点才会睡觉。

Early bird
早起的鸟儿，早起的人

Early bird price
早鸟价

An early bird gets the worm. You ever hear of that saying?
你听过早起的鸟儿有虫吃吗？

Morning person
晨型人

I'm a morning person even on the weekend.
我就算是周末也会早起的人。

It means I’m a morning person. I like to get up early and get things done.

I'm not a morning person. I don't completely wake up till noon.
我不是个晨型人。我直到中午才完全清醒。

Barry's a morning person. He goes out for a jog at 6 every morning.
Barry是个晨型人。他每天早上6点都会出去跑步。