How do I stop them jumping the fence?

Hi guys - I 'm a happy little bunny, as in the last 2 days my lovely girls have laid me their first eggs - however to counteract this good news the neighbour has come and complained that they keep going under the fence and pooping in her garden (there are 3 of them).  We have put chicken wire at the bottom of the fence now, but I cant imagine it will be long before they figure  ou that jumping onto the fence and then down the other side is a way round it.  Is there anything I can do to discourage them jumping up onto it.  They have my front garden, the driveway, the side garden and the back to roam in so they really shouldnt need anymore space.  They dont escape from any of the other places so something must appeal about pooping in her garden, (not that they dont poop at home of course .  Finally the thought of having to put them back in a run is awful as they have had a good 2 -3 months of roaming and I would miss them pecking on the window when I am sat down or jumping onto the stable door in my kitchen to see me .  HELP

chickens can fly pretty high if they want to or have to , u can clip thier wings that might help but as suggested can u not make the fence higher . having them free range in such as area aint u scared of the fox getting them i know i would be , my girls have always been kept in an enclosed area and they are happy  .

Have they had their wings clipped? Clipping just one wing unbalances them and they soon stop flying over fences. As they mature they are less likely to fly anyway.