Our Little Pug's an Attack Dog?

My husband and I were out on our patio, enjoying the warm & windy night when a couple of little birds started flying around us. It kind of freaked us out because they were flying really low and close to our heads, so we headed for the grass area. They seemed to be attracted to the lights on our patio cover, maybe they had a nest there? One flew away, but the other one stayed. It ran into our slider a couple times and then took a breather on the ledge. Izzie was very attentive and followed every move the bird made. Meanwhile our cat Misty (who used to be quite the huntress in her day) just watched from inside.

At this point it was just funny because there was no way that Izzie could ever reach a flying bird. Until the bird went full force into the slider and became disoriented causing it to hit the ground. In an instant the fun and games turned into a very traumatic experience. It was all a whirlwind of screams and shouts as I covered my eyes and turned away. I'll spare you the details...

Brandon insists that the bird flew away. I'm really going to try to believe him since I got inside as soon as I could! I can't help but feel bad for the poor, dumb bird. =(