I understand that in the coop I should alot 4 square feet per chicken, and 10 square feet in the run. Currently I have an 8 x 8' coop, and 8 x 10' run. Technically, the coop could house 16 chickens, and the run could house 8. If I kept the pop door open to the run during the day, can I consider their living space to be 144 square feet? Would I be able to comfortably house 14 chickens with this amount of space (this wouldn't exceed the max of 16 chickens allowed by the coop)?. I have been struck by chicken math! Currently my flock free-ranges, but I'm concerned about winter and poor weather. Please let me know what you think. Thanks!