Great horned owls have yet to be tamed and seldom make satisfactory pets.

Despite their dignified bearing and handsome plumage, great horned owls do not make pleasing additions to aviaries as they are the most irredeemably morose and untamable. Even when raised in captivity, the animals often remain surly, sullen, morose, vicious, and hostile, often flying in rage at strangers and even their owners.

Sources: (Brewster, 1925; Forbush, 1929; Reed, 1925)
Image: Zachary Bedrosian