I have a 10 year old Jack Russell Terrier/Chihuahua mix. He is trained to go on his pee pad which he uses while I am at the house, or he lets me know when he needs to go outside.
Just recently he has started peeing elsewhere in the house when I am at work. Also he poops in the house in my son's room and not on his pee pad (at night). What do I need to do to get him to consistently pee on the pad?
I do have other pets (birds and guinea pigs) but I don't think he would be marking his territory because he is peeing not close to these animals.