Bees
These insects are very dangerous to have around the house because of the potential of them stinging a person. This is especially true for individuals that are allergic to bees.
Swarms of bees can create nests in small openings.
When bees create nests it causes structural damage.
Individual honey bee colonies can contain 20-50 thousand bees.
It is very important to have nests removed as quickly as possible before a large amount of damage and danger is created.