The hive fronts were all covered by beards of bees. Normally we might see this on one or two boxes on a hot day, but never this many.
It is warm inside the hives with all those bees, so they were keen to escape for some fresh air. It's like sitting on the front porch in the evening.
The honey supers were easily removed, without stings or other incident. I think the bees were too hot to be bothered seeing what we were up to.
On some hives, we had to brush the bees out of the way to take the top boxes off. You want to be careful not to crush any little bee bodies when moving the heavy boxes. Hubby was obliged to do all of the lifting as those boxes were beyond me.