Yesterday AM was in Sterling MA, parked next to and walked over a underground yellowjacket nest. Only saw them because the direct sun on the hole and their wings were glimmering. It was 45F or so and the nest was as busy as LAX, like 3-4 in/out per second. No idea why they didn't swarm or sting besides them being cold/less aggressive?
Anyway yawntober continues, hopefully a few killer cutters soon.