hi,i do not normally comment on this type of thread,but coming from a farming family and having suffered nieghbours with noisy animals i have a little experience here and you have my sympathies.firstly do not shoot or harm in any way your neighbours animals.if you do so you will be the looser in more ways than one, the sh@tstorm unleased does not bear thinking about.contact your nieghbour,tell them in no uncertain terms that although you would wish to keep things on a friendly footing their animals are affecting your way of life,they are polluting your garden and if they do not take steps to control the situation you will contact the enviromental health department and the RSPCA.if things do not get significantly better contact both the aformentioned parties.the enviromental health procedure is a long drawn out process but stick with it and give them a frequent prod to keep them on the ball and you will get there.i have a particular dislike for the RSPCA because of their political agenda but if the horse is underfed they will act.my situation was solved by the enviromental health serving an enforcement notice.the two dotty old ladies with their twelve continualy barking dogs sold their house and moved.hope this is some help to you..cheers..greasemonkey