Morningstar --
While I feel for you and your situation (which pretty much bears out what the AC officer told me about the kind of calls they get regarding chickens -- that it's always the illegal folks who have the problems), coming here and posting won't do much good to change things. It's a classic avoidant Minnesota Nice passive aggressive strategy, though! Proves you really are from Saint Paul, LOL.
Call Animal Control and let them know about the situation with your neighbor. If he has a rooster, that's highly illegal and AC will come and take the rooster away. They will also probably make your neighbor clean up his act and take proper care of his birds. I don't know what they will do about the 'erosion' (has anybody else ever had to deal with that particular issue?) but if everything is in that bad of shape, they will probably confiscate the rest of the flock.
Either way, calling Animal Control to let them know this is going on is your best choice for actually dealing with your situation.
I mean, hijacking my thread instead of starting your own in order to complain is a way to go about it, but if you actually want something done, call AC. I believe their direct # is 651-266-1100, but I could be wrong, you may want to double check online.
Hope this helps.
Whitewater