Hello! Over the years, I have had minor nuisance with what I've identified as masonry bees. This spring, all of a sudden, I have a lot of them. There have been between 25 and 50 flying around the sunny, south facing ,front of my house.I watched for quite awhile. They really didn't bother me. The first story of my house is brick, and the second story has vinyl siding. I finally noticed they are going into the seam between the brick and the siding. I thought masonry bees were solitary, but I've seen multiple bees entering the same space, so that's a bit confusing. Anyway, what should I do about them? I don't want to kill them, but they are becoming a worsening nuisance. My granddaughters are afraid of them. I know they are pollinators and we need them. Please help!