Our little chins don't bark at night very often, it's maybe happened four times in the last 45 days. Now, I have noticed though, that the nights they bark are the same nights my cat will sit in the kitchen and "bark" (which we've always called it).
The last time it happened, I was up about 7 times between them all, and there was a huge storm coming in. We live in the mountains, so barometric pressure is very apparent here. I am also wondering if it has something to do with the moon. The moon rise was at 3:26am, which is about when they all started last night.
Has anyone noticed anything like this?