I found one of my ducks this morning, it had been attacked and partially eaten last night. I live in the city, I assume it was a raccoon...do they leave the remains though? We reinforced the coop today (something had dug under the wall to get into the coop), hopefully it will put an end to further attacks. We've never had any issues before...not sure what the risk of a return visit is though. Any advice on what else we can do to prevent any more attacks?