I was able to get a good look at the extensive fencing done by the WVA to keep donkeys off the golf course. The manager says it is working. In my daytime observation, it is definitely keeping goats out, there were dozens of them running up and down outside the fence. The fence is on the far side of the course in the photo below, not really visible in this photo.
The WVA has contracted with a business to capture donkeys by luring them to temporary corrals. Once the corral has captured donkeys, the corral must be moved, as donkeys are smart and won't go into that corral in the same place again! WVA plans to move donkeys somewhere and also to have the males gelded.