Our current flock is down to only 8 hens in an 8'x8' coop. This past winter there were 10 birds in there and i had a terrible time keeping them warm enough. I had to run the heat lamp many nights and this was a mild winter. So we were thinking of getting a few more to add in with them thinking it might help keep them warm since we have so much space in there. We have plenty of space. Do you think adding 6-9 more birds would help them stay a bit warmer? I have an order arriving in July that i can add to and put the additional chicks into the current coop when they're big enough. Thanks for the help. Can't believe i'm planning for winter already. LOL!