The appearance of an ala is diversely and often vaguely described in folklore. A given ala may look like a black wind, a gigantic creature of indistinct form, a huge-mouthed, humanlike, or snakelike monster, a female dragon, or a raven. An ala may also assume various human or animal shapes, and can even possess a person's body. It is believed that the diversity of appearances described is due to the ala's being a synthesis of a Slavic demon of bad weather and a similar demon of the central Balkans pre-Slavic population. In folk tales with a humanlike ala, her personality is similar to that of the Russian Baba Yaga. Ale are said to live in the clouds, or in a lake, spring, hidden remote place, forest, inhospitable mountain, cave, or gigantic tree. While ale are usually hostile towards humans, they do have other powerful enemies that can defeat them, like dragons. In Christianized tales, St. Elijah takes the dragons' role, but in some cases the saint and the dragons fight ale together. Eagles are also regarded as defenders against ale, chasing them away from fields and thus preventing them from bringing hail clouds overhead.