A heavy colony will usually drop from the underside of a roof at about 130 degrees.
Carpenter bee in attic.
Honey bees in the attic are often an overflow from a hive in a wall or at the eave where it is cool enough to sustain wax and protect honey stores.
Though not the best of situations be thankful this is happening into the attic and not the main living spaces.
Carpenter bee traps are convenient to use and offer a non toxic method of elimination.
You may also be dealing with carpenter bees which can do significant damage to wood.
Carpenter bees xylocopa violacea pose a real threat to any wooden structure or surface including your attic while they typically don t sting humans these monstrous bees are known for boring long complex tunnels in wood.
There are several non lethal means of getting rid of them.
Carpenter bees in the attic.
Buy or build a trap and hang it directly above the bee hole.