Sheep Herder/Quick guide

Starting out

 * Speak to Councillor Halgrive, who can be found near the church in Ardougne.
 * Talk to the doctor inside the church, buy a pair of clothes

Herding the sheep

 * Follow the path North past sick looking sheep until you reach the fenced enclosure North of Ardougne (Northwest of sick looking sheep)
 * Wear the clothes and enter the gate
 * Pick up the cattleprod and wield it (Cattleprod is inside the stone "cave" with a furnace inside)
 * There are 4 differently coloured sheep dotted around the pen, you need to prod 1 of each colour through the pen's gate
 * The blue sheep are the least obvious to find, far North-West of the pen, follow river to the west.

Murdering the sheep

 * Once you have 1 of each colour inside the pen, kill them by feeding them poison
 * Take all 4 bones
 * Use the bones on the incinerator

Finishing up

 * Return to Councillor Halgrive
 * Quest complete!