Now that we are in the low 30s/high 20s at night and 40s during the day, I began moving some wood in the other night from the back patio to the hearth grabbing a few armfuls at a time. I grabbed one split and felt a poke in my left hand and thought I must have grabbed a thorn or something. Nope. I looked down and there was a yellow-jacket. Ouch! I wanted to inspect the splits during daylight and found just about every 3 out of 5 splits had one, or more, yellow jackets hibernating underneath! I've never had that many bees before, maybe one or two found during a whole season, but not this many! I must have killed at least 25 of them just flipping over 1-2 rows of splits. Here are some pics. Be careful out there!