Birdhouse gone terribly wrong

I bought this birdhouse at Target.  Cute, right?  I thought so.  I put it in our backyard hanging from our maple tree.  After a week, I looked inside and was delighted to find a couple twigs. Perhaps the beginning of a nest??  After a few days, I peeked in again and was disappointed to see that the three twigs had not moved.  Apparently, the bird did not find the vessel a suitable home.  But, I thought the house looked pretty cool hanging out there so i left it, hoping another bird might give it a try. However, I looked in the other day and found:

 A GIGANTIC HORNET!  Luckily, my brave hubby knew what to do and secured a plastic bag over the whole thing.  When the huge hornet came back, he swatted it dead with a squash racquet.  Well done!
Now the plastic wrapped house is sealed in a 5 gallon bucket in our driveway.  We probably won't touch it for at least another month and we definitely won't be hanging it back outside!  Scary.