Hi! I'm interested in raising a small flock of 6 hens or so. I had some RIR in Seattle, but just kinda 'inherited' them; I didn't raise them from chicks. I understand chicks need to be indoors until they are 8 weeks old or so. How bad do they smell?? I certainly would keep them as clean and change litter, etc., but after a few hours on their own... what would I face in terms of odor here? Any info would be most appreciated!