Barred owls make all kind of creepy noises. With some of the sounds they make if you very heard one at night and didn’t know what it was it could scare the crap out of you. But most of the time they make a sound that sounds like saying (who cooks for you, who cooks for you all). The speed or tempo is about the same as if you were to saying the words to someone.
Check this out
http://www.owlpages.com/species/stri...a/gallery.html