It is shy. It is nocturnal. It is the only bird to build nests and mate in January or February. They will nest in other bird's abandoned nests. It lays 4 to 5 eggs and in 3 to 4 weeks they have fully developed their feathers.
All owls have good vision at night.
They are named the Great Horned Owl because they are big. The Great Horned Owl grows to about two feet long and is the only large owl of North America that has tufts of feathers on its head. Like others owls its heard more often than seen. It can sound like a barking dog in the distance or it makes a whoo, hoo-hoo, whoo, whoo. They live in Madison and other places.