Thanks for your replies. My township has no web postings on zoning and ordinances, so it has taken me a few days to get in touch with the proper people. After a serious game of phone tag, I finally spoke to the township zoning officer, and we took a look at where my property is situated as well as the size of my property. Bottom line is that I can have chickens if there are no nusiance problems. I found out in the call that although there are provisions against having livestock on less than one acre in my area (I have over 2 acres), the township is unable to enforce, and therefore does not enforce that ordinance (for reasons beyond me). Were my flock to reach a level at which sanitation and related issues (smell, noise) were an issue, then that would be another matter. 4H projects are also allowed, but that doesn't apply to me. The zoning officer also told me that he is aware of many people in my township who have chickens, which indicates to me that having a small flock is accepted. So, off to the next step of planning a coop/run! Thanks again for your advice.