Due to its small size, the horned owl feeds primarily on insects and invertebrate animals, with possibly an occasional taste of a small amphibious reptile.
因為體型小，角鴞以昆蟲和無脊椎動物為主食，偶爾品嘗兩棲爬蟲類；沒有這些東西時，小鳥、植物果實也可將就裹腹。