We had them here one year and we did the traps and all but only until I got an exterminator out here they were gone.
He put out some bait blocks and told me that the dogs could eat them but the vitamins in their dog food keeps the ingredients inactive for them. He was right, my Pommie used one for a chew toy and he lived to tell about it.
Just call them up and in less than a week you will not have any mice for a long time!!
Billy