This is the European paper wasp, a bit smaller than our native P. fuscatus. They build small round paper nests suspended from a perch such as the side of a bird box, inside a bird box, eaves, sheds, etc. These are amongst the most docile of wasps and it takes a lot of hard work to get yourself stung by one. Over the years I have worked around and next to their small nests and never been stung. Don't confuse these with yellowjackets which are much aggressive to any intruders they perceive to be threatening their nests.