Our 6 year old border absolutely loves being outside, or at least did up until a month or so ago. LIke it was the first thing he did after being let out of his kennel and would stay out until we went to be at night. Quick backstory....our other dog, a Newfie would occasionally get a hold of one of our chickens. Our border, Jet, would quickly run to the door and let himself inside as a way to alert us (or so we thought). About a month ago, we had a rooster in our mix that was learning to crow and the sound terrified Jet and he quickly runs to the door and will let himself inside eventually. Now he won't even go outside until it's completely dark and he knows the rooster is in for the night.
About two weeks go our Newfie passed away and now our border is a wreck. Won't go out, whines and barks early in the morning from his kennel, and obviously has some anxiety associated with this new rooster. Not sure what to do, but it's a problem and seems to be getting worse.