My house is surrounded by large flys.Is there anything organic to keep them away.They seem to like the wood siding and the wooden decks and steps.Thanks

I think Howard mentioned hanging zip top quart plastic bags from the ceiling. I tried it in my kitchen and it seems to work fairly well. Multiple bags are recommended but I just use one.

Chickens and guinea hens will eat as many as they can catch (a lot). There's always fly paper and strips.