Well our dogs guard our property, but they can't get on the porch anymore. Its been a few years and we only had 1 dog at the time and we had an opossum on our porch. Snakes shouldn't be moving right now. Rats or mice could be getting around I guess? So I will try to get extra wire on it, although we brooded our chicks in October in it, before it got cold while snakes were still moving and had no problems. Not to say that we can't have problems in the future.