They swarmed around a high limb in a walnut tree yesterday evening. MrsJ saw  a female  oriole  nearby,  taking  advantage  of  the  free  food.They were gone this morning.  A couple of years ago I witnessed a swarm on the move, first hearing the buzzing and then seeing the thousands of  bees streaming by against a grey sky.  It’s somewhat heartening to see that there are still honeybees around.  Maybe their resistance to whatever is harming them is growing.  Just a hope on my part with no clue if that is correct.