Plastic Conical Bee Escapes

I have some bees living in the wall of my house right in the corner of my bedroon window. I wonder where they came from?

So, I ordered some bee escapes and stuck one on the wall covering the hole. I also duct taped the hole down to something that the escape would cover. Don't ya know that those little gals can get back into the escape? Why aren't these escapes made more tight so bees have a harder time going back in?

I guess I should have just gone and bought some wire screen and made my own.