Let'sgoflying!
Touchdown! Greaser!
The darned things won't hardly jump a fence. They usually push under the fence at a weak point but the fence is miles long, hard to find without a cowboy. We need to push them through a gate or cut the fence.Maybe harass them by chasing with a 4WD vehicle until they decide the grass is tastier elsewhere?
Or, long distance lead injection.
You are right about the better feed; airport grass is good but outside the pastures are all et up.

