Great Horned Owls have a lot to say! When a pair of Great Horned Owls calls in a duet, the female usually hoots first, and the male replies at a lower pitch. Great Horned Owls may also pierce the darkness with an eerie shriek, which may signal a hungry owlet begging for food or a female defending its nest. They can also hiss, pop, meow, coo, and snap their bills. So have a listen after dark. There may be a Great Horned Owl in your neighborhood!