Call out to cow moving oddly near trough

One of the cattle was reported as moving oddly, waving its body near the cattle trough and not walking away when encouraged. Also on its own away from the others. This could be a sign of a problem, or an animal enjoying a good scratch. 

All 12 near the southern fence when I arrived. Mostly lying down,  a couple standing, all cudding. Three obvious patches of scratching near the trough, via hair caught on the barb. 

No problems or anything unusual observed during my 15min check.

007 is missing her left ear tag.