I have just been informed that bats live in the trees next to the sea cadets. Bats are a protected species and can not be moved. The following is from the governments website:

You’re breaking the law if you:

capture, kill, disturb or injure a European protected species (on purpose or by not taking enough care)
damage or destroy a breeding or resting place (even accidentally)
obstruct access to their resting or sheltering places (on purpose or by not taking enough care)
possess, sell, control or transport live or dead individuals, or parts of them
Disturbing a protected species includes any deliberate activity that affects:

a group’s ability to survive, breed or raise their young
the species’ numbers or range in the local area
If you’re found guilty of an offence you could get an unlimited fine and up to 6 months in prison.