I have 6 CX 8 wk olds in a 4 x 8 Tractor and to give them more exercise I let them out to free range each afternoon. They are big enough that our barn cats have no interest in them. Every time I walk anywhere near they all come running to me but it's really kind of - more like a fast waddle and thinking they could fly
I even take them on short walks as they like to follow. If only they knew