Quote Originally Posted by BOBS DAD
Is your attic right above the living room ceiling??? If so, then there is a good chance that there IS something in the attic. NO, not a ghost or Jason or anything as gruesome or chilling as all that... most likely a chipmuck or a mouse or a giant flying bat with alien teeth and a spiked tail! Sorry, I couldn't control myself... now where was I??? Oh yeah, a chipmuck or a mouse could be moving and moving about at similar times in the day. Dogs hearing is obviously much more sensitive to these things and he could just be reacting to it. Also, sometimes your heating or cooling ducts will heat up and buckle at certain times during the day and make creaks and noises that you do not neccessarily hear. They do this normal and often occurs on schedule with relationship to the furnace kicking on. Your other dog probably hears these subtle noises or cues also, but simply doesn't care. OR HE IS AN ALIEN IN DISGUISE AND HE IS JUST TRYING TO COVER FOR HIS ALIEN FRIENDS by acting like he doesn't hear them.
LOL!

Bob's Dad is probably right. I am sure your dog is not hearing a ghost. It is probably a small animal in the attic or heating/cooling ducts will buckle and he hears them. I'm sure it's nothing to worry about.