These monsters are created by the spell of the same name. Parts from a Small creature make Tiny abominations, parts from a Medium or Large creature can make a Tiny or Small abomination, and parts from a Huge or larger creature can make a Medium-size abomination. Like all undead, flying abominations have no place in the natural order of the world. A spellcaster creates these skeletal body parts to have as "handy" servants and to act as guardians of low priority treasures or places.