Will bees, etc. make nests in your attic?

I live in NJ and I have some small holes in my soffit vents. I am afriad that bees and other insects will get up into my attic and make nests up there.. is this a common thing? should I try to fill the holes in the soffit vents or not worry about it? I just don't know if it gets too hot in the attic for any bees or other insects to live in there anyhow during the spring/summer?

 

Bees can make nests up in there, as well as wasps, moths, etc.

Encountered a weird phenomenom several years ago....honey bees actually creating hives, complete with gobs of honey, in people's walls, attics, etc. According to a bee keeper I worked with at the time {he cut the holes in the roofs, removed the bees, wax, honey, etc. while I put it back together}, due to an especially warm weather pattern spanning several years, these honey bees started living in the various cavities of houses.

Anyway....it only take 1 tiny teeny hole of some kind for insects {especially wasps} to find their way in or out. Most all houses have at least some teeny tiny holes.