Baobha

From Glen Cook Wiki

One of the many varieties of Shadows indigenous to the Land of Unknown Shadows. These Shadows, unlike their brethren who haunt the Glittering Plain, take different forms and have distinct personalities. The baobhas are not described, but they apparently sing when someone is about to die. They sing at the outset of Soldiers Live, foretelling the deaths of Ky Gota and One-Eye.