Any suggestions on the distance I should keep coop/run from my house...talking about approx 20 chickens and summer coming up. I currently have 10 chickens in a coop / run approx 60 feet from my house but am thinking about converting a shed that is approx 75 feet from my house into another coop and adding 10 more chickens...just concerned with smell in the summer but want to be able to see chickens from my house.