This is a long shot, but is this his first yard? You said you moved. My terrier paces and whines a lot when the squirels are actively collecting in the fall or if I dare feed the birds it creats a whole hunting ground for him. He can't wait to get out. Right now I have moles in my yard and he goes out everynight and barks like mad. I wonder if moles are active after dark? Makin a mess too.
