I am not sure how you know she ain't looking at hog. But I think my gyp started that way. I wanted to see so I put her in a wooded pen so tracks would be everywhere. I think she barked when hitting a hot track. So I kept taking her back. That way it would increase the learning curve. She quickly found that if she barked too soon they ran more. Now she runs up and does a yip nip thing to stop the pig. I think that because of working in a wooded pen. They are great because you can see what is really going on. There are no dry runs either. You can go in work a while, pull out for a break and go right back to it. My gyp bays so the pigs can be used until it is BBQ time

I do not have a wooded pen but find someone that does and bring corn and or pigs. It is well worth the time and effort.