So, I tried hanging up a cabbage, and all 6 ignored it for a week until the blizzard/cold kept them sheltered/bored enough to notice it. And of course, once some figured out what they could do with it, it was demolished in a 2 day period. The next time I went shopping I picked up 2 heads - 1 for me, 1 for them. Must be either very bored, or else now all 6 know what to do with it, because this one was reduced to nothing but the core in a day. I also noticed that they ate a lot less of their feed than usual. How often is healthy to have a head of cabbage available as a treat for 6 girls? Should I alternate between cabbage and a hanging forage cake?