Hi I am soon intending to buy 6 pekin (cochin) bantams. I intend for them to have a 17ft x10ft run, attached will be a large coop. Now and again in summer when we are sat in the garden I may let them free range but generally they will be confined to their run. Will this be big enough for them long term? I intend to give them things to occupy them like branches, sand pits, and food treats to forage for. I was going to get 4 originally but the husband said he wanted to get 6 as they are small. Sound like a good idea and will they be OK for room?