(norwich U K)
we had a swarm of honey bees in our garden Tuesday afternoon. After a while they settled in a shrub in our garden; the sight and sound was remarkable.
I called a local bee keeper who came the next morning. He collected the major part of the swarm in a basket and left it on a sheet on the ground propped up on a brick and left it for about 4 hours by which time most of the swarm were inside, so he wrapped the sheet round the basket to take away. I was amazed when he said there were about twenty thousand bees there.