Differences between spotted owls and barred owls?

Barred owls are larger then Spotted owls. Their plumage is also lighter in color, usually with a few white or brown streaks, unlike the spotted owl, which has dark brown plumage with many white and darker brown/black streaks or "spots". Barred owls have different mating cerimonies then spotted owls. Barred owls have a lighter hoot then spotted owls, but spotted owls have a much more pleasant one.

They are very smilier in shape in appearance but have very different lives and personalities.