Hold the Shepherd's Whistle (just hold) and all trained Shepherd Dogs in [Docile mode](Basic Core Stats) will rustle up some nearby livestock (amount based on level), making it easier to transport livestock over long distances.
However, this is tiring and costs [Nourishment Points](Basic Core Stats), the cost of which is reduced with higher levels of the skill.
Trivia
- Introduced in the original DT.