Two Summers ago my Mom was in her office and she kept hearing a weird sound. She couldn't put her finger on it and my Mother has always had K-9 rivaling hearing. She finally pin pointed it to her bedroom outer wall and then started hearing it in her attic, outer wall. She went outside and took pictures with a camera (zoom lens) I told her not to - because even the shutter clicking of a camera will aggitate some bees. Not to mention the smell of humans. It's not us in general it's the smell of our sweat, and mostly when we fear things - there is a certain pheremone released in our sweat that is undeniable to animals. This is why I got that EMDR therapy to not have my pulse beat rapidly and increase my fear, which increases the release of sweat around bees. I also asked to not do the swatting and flailing which is genetically engrained into our beings like fear of spiders, buzzing noises, snakes. Can't be helped. Some are less than others, but it's genetic.
Anyway - Mom got some pictures and I identified the little buggers for her. They were the NOT nice at all, meat eating variety and highly aggressive. Mom being the perfectionist wanted better pictures because there were some things I couldn't make out about the wings - but begged her not to take more pictures. Good thing she didn't. We got a man from the local university to come out and make sure FIRST that they were absolutely not Africanized. They were very similar but unless you had the bee suit and could get into the hive - you couldn't tell. He was really excited until he got up on his ladder and saw how they had built their hive. ORiginally I thought he didn't want them - I talked to Mom and she corrected me - he DID want them they were what he needed, but he couldn't vacuum them out. (sorry about that) They were what he needed but sadly he said in order to get to them and "save them" he'd need to tear the side of her house out or rip part of her walls down. Had they paid to replace it? She would have allowed it. They didn't. So she called a specialist and had them dusted. (literally and figuratively)
The dust was taken in and out and in and out by the workers and took days to kill them. They went crazy while they were dying, but eventually the poison got into the hive and killed the Queen. Since the hive was so massive - he came back out and checked it - but said that the chances it could be there again in a year or two were good. Mom had someone come out and put up cloth and seal the access.
Years before that? My Father tried to rid the near same spot of bald face hornets and lost the fight - had to be taken to the hospital for over 40 direct hits to the face and upper torso. He also killed the bumble bees in the ground - thinking if he sealed one hole - that would kill them. Not. They came out from all over the place. Another time Pop killed paper mud dauber wasps and got whacked quite a few times. - All of the attacks on the bees, wasps and hornets were for my safety. I learned a lot - mostly to avoid and live and let live.