I am looking for some advice. My neighbor has chickens that year after year continue to come into my yard. Year after year (several times per year) I am over there telling them about the chickens and that I NEVER ever want them to come into my yard...and year after year they continue to do so. One year, my dog got extremely sick and after a $1000 vet bill, we finally figured out he must have been eating/licking his paws that had chicken poop on it. I went over there again, to explain this to them...but, guess what....they continued to come over! Our city does have a chicken ordinance that clearly states you can only have 4 chickens and that they have to be in a chicken coop and or fenced in area at all times, but either they don't know about it or they just don't care. I want to be neighborly and not cause any problems. I have even considered getting a fence, but at a cost of around $10,000 to fence in my back yard, that will not happen. Any helpful suggestions, would be greatly appreciated. The last thing I want to do is call the cops, but I am not sure what to do. I thought about calling the Humane Society to see if they would do something.