The Huorns: Origin (p2)

In The Two Towers, the Huorns are witnessed to march to Isengard with the Ents. After Isengard is harrowed of its orcs, most of the Huorns chased and killed them after the Battle of the Hornburg. After this brief appearance, the Huorns went back into the forests. The tactics used by the Huorns were quite effective, as they only attacked when all the enemy Orcs would be in their midst, denying the orcs chance of escape. It is notable that Huorns seemed to have the ability to cloak themselves in shadows, becoming almost undetectable at night.