These Orcs seem to strap any metal they find on themselves for armour. This metal should be put to better use, and collecting it for those farmers would likely be appreciated.
The Warg-riders here wear armour that could be used for scrap metal by the farmers. Collect some from those you defeat and bring it back to Oter.
The Warg-riders have captured Edsig's Farm and have converted it into a White Hand outpost. There are many Warg-riders patrolling the edges of their new outpost.
Warg-riders are keeping watch on the road, and the Fallows will not be safe while they ride unchecked.
Oter awaits your return to Thrymm's Farm, and will be eager to accept the scrap metal you have collected for him.