How big is the great horned owls horns?

The "horns" of the great horned owl are actually tufts of feathers, not true horns. These feather tufts can vary in size but typically reach about 3 to 6 inches in length. They serve as a form of camouflage and may help in communication, rather than providing any real defense or predatory advantage. Overall, the tufts contribute to the owl's distinctive appearance.