Wild owls bathe every once in a while, mostly by splashing a bit of water on themselves since their featers aren't as , but some wild owls don't seem to like to bathe at all.
It's unclear how little Trude would act in the wild, but in captivity Trude is a big fan of baths, and loves to float around in the bath like a wide-eyed rubber ducky.
Trude's human Kimora Hidetoshi enjoys sharing videos of the strange little bathing owl online so people can see what it's like to have a floating sack of feathers stare at you when you're lying naked in the tub. *shivers*
-Via Laughing Squid