Kollokation
Then I started working days, and she has become a night owl.
If you are a night owl this really is the place to come to.
Also like the main character, he is a night owl.
You either have to be an early bird or a night owl, she told herself.
Charlie lived alone and she knew him to be a night owl.
She knew he was a night owl and preferred this time to do his writing.
But not too late for a night owl like Cindy.
People who have this problem may be called "night owls."
I think the night owl in me is trying to get out.
A small number of routes run 24 hours a day in "night owl" service.
Idiome