In English there are several expressions referring to the word "owl":
* night owl: Fig. someone who stays up at night; someone who works at night. This colloquial term, originally used in the late 1500s for an owl that is active at night, was transferred to nocturnal human beings in the mid-1800s.
* I wasn't brought up in the woods to be scared by owls: I am not foolish or easily frightened.
* owl-prowl: a nighttime session of owl watching.
* wise as an owl (also wise as Solomon): very wise.