I'm somewhat of a night owl. I go to bed pretty late
Really?
Yup. I actually function very well at night. In several countries early birds are called 'A' people and night owls 'B' people. Especially Scandanavia
I have not heard that before
'night owl' is actually from the primary nocturnal habits of owls!
Ok. I don't like owls
Why? They're pretty useful actually as they catch small rodents. Handy around the yard. And, night owls are the most energetic before they go to sleep
I don't just how they cry at night
night owls may stay awake until just before or even after dawn. Night owls tend to feel most energetic just before they go to sleep at night. 
Some night owls have a preference or habit for staying up late, or stay up to work the night shift. Night owls who work the day shift often have difficulties adapting to standard daytime working hours.
Night owls have often been blamed for unpunctuality or attitude problems. Employers, however, have begun to learn to increase productivity by respecting body clocks through flexible working
Researchers traditionally use the terms "morningness" and "eveningness" for the two chronotypes or diurnality and nocturnality in animal behavior. In several countries, especially in Scandinavia, early birds are called "A-people" and night owls are called "B-people".
Etymology.
The term is derived from the primarily nocturnal habits of the owl. Most owls sleep during the day and hunt for food at night.
Characteristics.
Usually, people who are night owls stay awake past midnight, and extreme