Ibn Ezra on Leviticus 11:17/אבן עזרא על ויקרא י״א:י״ז

1AND THE LITTLE OWL. The word kos (little owl) is similar to the word kos (owl) in as an owl of the waste places (Ps. 102:7). Some say that the bird is hidden (nikhseh) from the eyes of people. It therefore rests in uninhabited places.

2AND THE CORMORANT. Some say that the shalakh (cormorant) is so called because its nature is to cast (le-haslikh) its offspring down.

3AND THE GREAT OWL. The yanshuf (great owl) is a bird that flies at night (neshef), for it cannot see during the day because of the brightness of the sun light.