This guy landed under the feeder and I was intrigued. I even went outside to get a better look but lost sight of him as he slipped behind a bush. Then I heard a scuffle, and several small birds screaming in terror. My final view of him was as he flew away with a sparrow in his evil clutches. I just about cried.
I heard this could happen, that hawks or falcons stalk small birds at the feeders. Unfortunately I didn't recognize that behavior until it was too late. After checking my book I still couldn't figure out what kind of bird this was. He (or she) was grayish in color with a striped tail, and about the size of a crow. My best guess based on its small size is that it was probably a falcon. Now with a tasty sparrow in its tummy.