Out guest chased a smaller bird (sparrow of some sort I think) into a window. We went in and when we came back out both the dead (knocked out?) bird and this one were gone. There weren't any feathers as if the sparrow was eaten. Could the larger bird have carried off the smaller bird, or does this mean it got away?
Oh yeah, and can anyone ID this bird? If it helps, this is Tucson, AZ.
Coopers and Sharpshins can be very difficult to tell apart. The female Sharpie and Male Cooper are approximately the same size. Coopers are about crow-sized and Sharpies are about Blue Jay size but the female hawks are bigger than the males. That being said, look at the head sizes of both--the Sharpie has a very small head and the Cooper's is more proportionate to its body while the Sharpie's looks undersized. Does this make sense? But I agree with Resin in that the rounded tail is a pretty good identifying guide when you can see it this clear. Plus the red eye is an indicator of an adult. Immature's tails also are kind of scraggly and hard to tell if its rounded or square. I'd say Cooper's also.