He’s not expressing confusion, he’s tilting his head for better sound localization. While having an ear on each side of the head is good for lateral echolocation, tilting the head so that the ears are offset gives it vertical depth.
I am on holiday in Scotland and I made a tour with a boat on the Loch Ness, not knowing that THE LOCH NESS MONSTER WAS JUST NEXT TO THE BOAT. I didnt really believe in the monster but when we were on the middle of the lake IT SUDDENLY APPEARED, ROARED, and went back into the lake. I could snap this picture before it dissapeared but others weren’t that lucky. Im sorry it’s blurry but I had to make it real quickly. SPREAD THE NEWS, THE MYTH IS REAL: NESSIE EXISTS!