My kids called it Bee Star Wars when we had a robbing frenzy here. You'll know it when you see it. It was actually frightening to watch and goes incredibly fast.
I made robber screens...and I am no woodworker at all...and slapped them on all my hives. It can slow the bandit bunch down and help the weaker ones stay safer. I googled for a picture of one in action and looked at the price of premade and decided I could actually make one.
I bought a handful of $1.88 1x2x4 lumbers from Lowe's (discovered later Ace Hardware in our town has something similar but slightly more expensive, and the 4 foot length fit into my SUV between kid seats) some metal window screen, a box of wood screws and some staples for my staple gun. Used a jigsaw (I'm scared of DH's big heavy circular saw

) to cut some lengths off after measuring the hive entrances and and knocked them together on my kitchen table in about 5-10 minutes each. Each lumber made 2 screens for 8 frame hives. I have a couple extra so I can make more as I add hives or nucs.
Apparently the robbers wanted into a nuc today after I fed it, but I was able to easily close everyone up and put a stop to it. I like 'em and wish I'd just put them on like 2 weeks ago...before the dearth started. Live and learn.