Big swarm caught yesterday in this 6 frame, double deep swarm box. We are heading towards 2-3 months of dearth, and big swarms at the end of a nectar flow should be rare.
We wonder if it is an abscond.
When I move it to a box next Monday, I will see if the bees are bigger, foundation bred from some possible neighbor's apiary, or a smaller and darker feral colony.