bee swarm

This was actually taken from our Apartment balcony when I noticed a swarm of bees on a tree in the courtyard.  We live on the 4th floor, so they were VERY high up.  I later was informed by my mother in law (she is a hobby bee keeper) that I should have called the fire department, as bee hives that swarm usually are looking for a safe place to live and rarely find one and die.  The fire department apparently can catch them and has a list of bee keepers that will take them.  Hope these guys made it somewhere safe!  I spotted them in the morning and they were still there went i went to bed at night.  They were gone the next morning, so were there for 15-25 hours.