Is this their entire space, or is there a coop too? If this is their entire space you should probably not contemplate giving them less than 10 sq ft per chicken, and even that's pretty tight IMHO. Myself I would not keep more than 6-8 chickens in that space because they act a lot happier and more relaxed and 'natural' with more per-capita room. But you could probably put twice that number in there without running too unreasonably high a risk of problems. Possibly a bit more if there is a separate coop, or if the coop is raised up over part of the run so's not to subtract from the run's floorspace. JMHO, have fun, Pat
I agree with Patand. With 175 square feet, you could have 17 and a half chickens, but you're proably better off with half that in the space you have.
I have 11, maybe 10 as one is most likely a roo. and he can't stay. I think I am going to tap out at that and then see about making another coop and run beside the existing one. see if I can't convert the dog house that doesn't get used into a coop for 5 other birds that someone wants to give me.