The horned owl is known to hoot and call year-round, but during the mating season the call and response between male and female becomes especially vociferous.
蘭嶼角鴞全年都會鳴叫，求偶期更有雌雄相互應答的情形。我們觀察過一對角鴞，雄鳥先找個樹洞，在附近徘徊不去，夜晚並起頭髮出「呼呼」的叫聲，接著遠處傳來雌鳥回答的鳴聲。