I've been a night owl all my life. I'm always up late at night.
Same here!  I usually stay up until 2 AM!
I'm usually up until 4AM! I could never be an early bird. I can't go to bed or wake up early. I've tried!
Wow!  You are a night owl!  What time in the morning do you have to wake up to be considered an early bird?
Someone who sleeps at a time that tends to be considered early by most in the same time zone are typically called early birds.
I think a lot of older people are early birds.  One of my older coworkers told me he wakes up at 4 AM.
In some countries they call early birds "A-people" and night owns "B-people". Pretty weird, huh?
That's interesting!  I have never heard that.  I much prefer our term.
Yeah! Night owl sounds cooler! It's derived from the nocturnal habits of the owl!
If that is true, than the early bird must have been derived from birds that get up at the crack of dawn, right?