Banshee

Banshee n : is a name given to a female spirit, which can be found in Irish and Scottish folklore.  The wail of a banshee is associated with the foretelling of an imminent death in the house, outside of which the banshee has previously visited.  An omen of impending death in a house, a banshee is a female entity said to herald death by groaning and screaming.  See also: death clicks and whistling ghosts.