This is my first post in the forum and I need some advice.
We adopted a 3-year old blue merle border collie about 6 weeks ago. He's a great dog, but is overly obsessed with going outside - we have a big balcony in the back from where he can see our backyard and the neighbors' cats that come and go, and we also hear/see the neighbors enjoying their own backyards.
He has elected this as his job: to observe any movement coming from the backyard. He doesn't bark or anything, he just stares obsessively, doesn't move, listen or react to anything we do (calling, whistling, loud sounds... nothing