We have several different types of wasp that nest everywhere, the small ones seem to be the most aggressive. And, of course the mud wasps which cause the most problems, although I've never been stung by one.
This, the Carolina Wren are prolific here. The males can be compulsive nest builders. They will build many nests but choose only one for breeding. They (the sleeping birds) are often found in clothes left hanging on the line after evening and will surprise you when you go to remove the laundry.
I like having them around, the birds have a pleasant call and they are great insect hunters.