I am a night owl. I like to go to bed very late. I am rarely awake early in the morning.
Do you have a sleep disorder, or is this just a choice?
I do suffer mild insomnia but much prefer to stay awake late. Night owls get their name from the nocturnal habits of owls.
Most owls are nocturnal, but some are considered crepuscular. Such as the pygmy owl. 
I didn't know that. I prefer to work the night shift as I feel more alert late than during the day.
They pygmy owl hunts at dawn and dusk, but other owls are active during the day. I completely understand, being a college student .
Haha, I don't think college students sleep at night, especially before exams. The energy drink was practically invented for them.
I tend to stay awake for days at a time and act like a zombie before exams. Energy drinks and lots of coffee help me stay awake.