Beekeeping and drones "working"

Hello all,
I witnessed something interesting at my birdbath. It was a warm/hot day and drones were coming for water and returning to the hive. Not tons of drones but some.
And, yes, I can tell the difference between a drone and a worker.
Are they drinking for thirst or for the benefit of the hive’s cooling?
Any thoughts? I thought all drones were good for was mating.
Do bee do bee do,
Eric, Longmont Colorado

Hi Eric, that’s an interesting observation. Maybe it’s a bit of both. It would be good to know that they were doing something for the good of hive.