Bumblebees:
These big black and yellow and fuzzy bees can nest in different ways. Bumblebees will nest in old moletunnels in the soil. Preferred soil
spots are under decks or beneath soffits so there is some rain protection. They do not gather nesting supplies but instead will use whatever grasses, chewed fabric, etc., that the moles would
have left behind. They will build small honeycomb pots that they will use for small amounts of nectar and to raise babies in.
A bumblebee hive might have around 30 bees. In Spring the queen starts on her own and chooses a nest sight. Once she has offspring they will
take over foraging and the queen will stay in the nest. They only produce a few teaspoons of nectar and they don't store any of it. This large bee is very gentled and prefers to fly away
than to sting a person.
They don't winter over. When the cold frosts come and the food supplies are gone the workers will all die. Only the queen will leave the
hive and find a spot to hibernate for the winter.
If you have bumblebees nesting under a deck and coming up through the floorboards where you sit, you might consider putting down a small rug to redirect
where they fly out from so that they aren't appearing where you are sitting yet can find another way to exit.
If they are nesting in a shed wall, etc., if you are willing to wait until fall when the workers die and all activity stops, you can then safely block
off or repair all holes where they are gaining access. That will prevent a queen from returning to that same location in the spring.