This is what I like to see; bees coming out for what's euphemistically known as a c;eansing flight, otherwise a poo. You can see a couple of yellow splots of it. These were originally native black bees, but there are now quite a few with a yellow stripe owing to outcrossing with the hybrids which predominate locally.
I took a hive which had dies out to pieces; there were lots of dead bees on the bottom, a few clinging to the frames, lots of food, and no sign of brood or disease. That's down to queen failure, which is distressingly common these days.
That's so lovely to see :)