Owls are found worldwide except in the Antarctic and on some islands. They are active at night and are characterized by flat faces and short hooked beaks that they can open very wide. They swallow their prey whole and later regurgitate the undigested parts as small balls. They also have the ability to turn their heads more than 180 degrees.
There are two basic owl families, both of which are found in the land of Israel. One family is the Tytonidae, which are the Barn and Grass Owls. They have heart-shaped whitish faces, usually outlined by a dark line, and small dark eyes. The other family is the Strigidae, the typical owls. This family contains a large variety of species, all of which have large eyes that may vary in color from light brown through orange to yellow. This family includes the eared or horned owls, the fairly rare fishing owls, and owls that vary in size from the midget scops owl (less than 20 centimeters [8 inches]) through to the giant eagle owl (over 70 centimeters [28 inches]).
Eight species of owl are fairly common in the land of Israel. Most are very seldom seen by humans, but they are quite well known by their different and distinct calls. In biblical times the nights would have been much quieter than in most modern places, and the strange night sounds probably would have interested people, causing some speculation about what was making the sound. The different owls would thus probably have had different names even if people had never seen them. In fact it is unlikely that they would have been able to associate most of the calls with the owls that were seen.
Some commentators associate the word lilith with a female demon referred to in Babylonian legends. However, even if this is accepted, it is likely that this demon was also associated with some type of night bird. In many Middle Eastern cultures, demons and monsters have been identified with owls, probably as the result of their strange sounds at night.
In modern Hebrew lilith is the name of the tawny owl. Some Bedouin say that the trilled call of another owl, the Scops Owl Otus scops (one of the most common owls in Israel), is the hooting of a female demon quietly rejoicing that she has found prey. The root of this name is similar to the Hebrew word for “night” but is actually a Babylonian word. It is also similar to the way some modern Palestinians describe the sound of hooting.
The scops owl is a tiny eared owl that is a mottled gray in color. By day it perches close to the trunk of a tree, where its mottled coloring blends in with the tree bark, making the owl look like the stump of a broken branch. It has a soft, trilled call.
It is associated with doom, destruction, and demons.
An expression, such as “owl demon” or “owl witch”, is probably the best solution. In sub-Saharan Africa, where the scops owl is well known, the local name plus a word for demon or witch can be used.

Source: All Creatures Great and Small: Living things in the Bible (UBS Helps for Translators)
