Lol... Well he must just like the sound of his voice. =) It's probably related to being away from you (and any other family members for that matter). We've left Zeke outside on our patio a few times because he's either sick or he's gone after Eli. He'd be fine until about 1 am. Then he'd start barking. This was in the fall, so he wasnt cold.. he was just lonely.

I would definitely look into doing something to curb the barking though.. I wouldnt want neighbors complaining. We have a family two doors down that leaves their dog out to bark bark bark all the time. She'll be out there for an hour at 7 am, just barking and crying. It's sad really. I told J I was going to steal her.. hah. She'd the most beautiful Amer. Bulldog. White with brindled patches. But I'm sure they'd find her here.. lol. =)