Hi...I have four chickens that are almost 19 weeks old. We have a tiny back yard but we built a coop that is 4 x6 and a run that is 8x8. Is this run to small for four chickens because the run stinks and I make a habit of raking it out every night after they go to bed So I don’t understand what I’m doing wrong. The floor of the run is dirt but here in west Texas we don’t get a lot of rain so it’s dry. What can I do to help with the smell?. Thanks so much for any and all suggestions.