An assassin lives at our house

He might look [fat, lazy] old and slow, but this de-clawed cat has taken down 6 birds this week! We are so proud of him! We have this problem with birds nesting above the window on our back porch and they make a huge mess--poop, nesting materials, feathers...we don't really want them there. He has been single-handedly getting them out of our hair. I don't know how he does it, but I would like to see it some time. I am imagining him launching into mid-air and catching the bird in his mouth. It would be a sight to behold. Not to mention that he weighs like 15 lbs or something.