I've seen the sq ft suggested per bird however I"ve seen many peoples setups that are much smaller than the suggested sq footage. I have six birds and have limited space to build a coop and run, my current design had a 3x6 coop elevated with a 4x10 run. I will be letting my chickens run in the yard while I'm out in it no less than 5 days a week several hours each day. Will my chickens feel mistreated under these conditions?