This small snake is likely eating more insects than the rodents which is fine but i think it is living in a hole (that I think was made by a chipmunk) in the siding of the garage. Now this is to close to the house for me, if it were out in the yard I would welcome it actually but not where it is now. Kind of like the spider in the house rule. In the house they die....in the yard they are allowed to live.
