When honey bee's swarm you know about it. I had a callout for a scattered swarm in Noctorum, Wirral. It had hit a row of terraces and bee's where in and out of all the air bricks along the row. Some bee's where coming out in peoples toilets and bedrooms. The bee's in the photo where out of someones bathroom. When a swarm is scattered like this you hope that the queen decides to move on without wishing to take up permanent residence!!
Tree bee's using a bird box as a nesting site. Tree bee's are pretty harmless unless you stand on one. We try to avoid treating them unless a customer has a real concern. They are not protected like honey bee's.
A good friend of mine has had her house invaded by bats. They have entered the lounge via the chimney. Bats are protected by law. It is illegal to remove bats from their colonies or even handle them without license. It is different however when they enter the living spaces of the house. Lizi did the correct thing by calling in a bat rescue service. The guy removed a few of the baby bats that had become trapped in the house with the plan to bring them back in a few weeks when they are able to rejoin the colony.