One of many reasons I hate English Sparrows

This is a half-grown bluebird I found on the bare floor of the bluebird house.  Sparrows kept building nests in there for a couple of months, and I'd tear out the nests before they could use them.  I really don't know what this little guy was doing in there with no nest, but he was; Cliff and I were heading for our walk, and I wanted to check for sparrow nests.  At first I thought he was dead, but when I reached for him, he moved.  
"Remind me when we get back," I said.  "I'll see what's up with this bird."
We both forgot when we got back, so it was probably a half-hour later when I thought of it.  As I headed toward the birdhouse I noticed a sparrow sitting atop it, and another one nearby shouting encouragement.  That's when I realized the sparrows were intent on killing him.  If he dies, he'll be the third such victim of cruel sparrows.  

  See his poor bloody head?  I have him in a bucket.  I'm hoping he will be able to rest up and get his strength back in a few hours, but I'm not expecting it.


I think the bluebirds would be better off if I would just take the birdhouse down.