There are owls in my backyard. I hear them at night, since I keep their schedule. They are Barred Owls and they make a lot of noise in the spring when they are nesting and raising young. I never see them, since it's, uh, dark when they are out.
A Griffin is usually a combination of an Eagle and a Lion, but what if it were an Owl Griffin instead? An "Owliffin" or a "Griffinowl" would prowl by night on noiseless fuzzy wings. My kind of creature indeed.
"Owl Griffin" is ink on sketchbook page with a bit of digital inking, 4 1/2" x 4", May 4, 2013.