Owls are my favorite birds at the moment.
Here is some information about owls:
Most owls are nocturnal, but several are crepuscular, or twilight active, hunting mainly at dawn and dusk. A few owls, such as the burrowing owl are also active during the day.
Most owls see well in poor light, but all see well in bright daylight--something that even the most nocturnal northern species have to do during the arctic summer. The owl's eyes are almost immovable, and the owl must turn its head to look elsewhere; however, some species can rotate their heads horizontally 270 deg, or about three-fourths of a circle, and can turn their heads completely upside down (180 deg).
I used Photoshop to color the sketch.
This picture is part of our project called "Genesis - Spirits of Nature"
I Hope you like it