end of summer, they are in the ground, known as ground hornets. They like a depression about 6 to 10 inches deep and about the same across. So if you see this watch out. But, that is not the rule, I have seen them around tree roots in the side of banks etc. and they are hard to see since 1 or 2 leave the nest at a time. The worst one I see is the little yellow stripped ones you see at dumpsters or on a coke can in the summer. Let me forwarn you of these. They almost seem innocent in there demeaner, notice how they have almost no fear of you............thats because they don't fear you. But they will sting you to death if they can. If one starts to sting, it become a universal free for all. They will attack in-mass, believe me and they will follow you for ever. Also be careful of bushes and trees, those little paper hornets can make life unpleasant too! You can spot them after the leaves have fallen. I never worry about snakes, I've seen some huge chicken snakes etc. so what. Hornets, these I watch for. Many are allergic and have no idea they are. I was stung a few years back 3 times on the hand, and it looked like a snake bite, and ended with a large golf ball size knot under my arm. That, in my life, was the singular most painful situation I have ever been through. Never ever felt such pain. And I had trouble breathing on top of that. The good thing, I did not have to walk a mile or 2..........either. I'd have never made it......................take your time out there, look around...........