Caoineag (a female spirit in Scottish folklore ) is another version of this death spirit where she appears outside sick peoples houses.
The caoineag (Scottish Gaelic pronunciation: [kak) is a female spirit in Scottish folklore and a type of Highland banshee, her name meaning "weeper". She is normally invisible and foretells death in her clan by lamenting in the night at a waterfall, stream or Loch, or in a glen or on a mountainside. When a death from illness was about to occur she would appear outside the sick person's house wearing a green shawl and begin lamenting at the door. 
