I was going to suggest a Sparrow Hawk, but not sure about the blue/grey color.

The tail looks fairly squared off and even in length, and the head looks small in proportion to the body. I would go with a Sharp-shinned Hawk as a Cooper's would have a rounded end to the tail...all the tail feathers wouldn't be straight across. Difficult to tell size...general rule of thumb is a Sharp-shinned is about jay sized where as a Cooper's is about crow sized.

Thanks schoolhouse and whwo. I asked my husband if the woman said what that pole was and it's a basketball stand. I wonder if the poor bird ran into it? I sure don't know my hawks very well.......except for red-tails, but that's easy. Especially from their cry too. Doesn't a sharp-shinned have really bright yellow legs? I think that's a leg I'm seeing on the side, and it's sort of dull.

Aw. That's heartbreaking. We have Coopers and Red Tailed Hawks where I live. We live on a bluff, very heavily wooded, and so we put up bird screens that go on the outside of windows to avoid collisions. So sad to see that poor baby. Looks like a Coopers Hawk to me.

This is absolutely an adult Cooper's Hawk with the dark "capped" appearance to the head and also the grey auriculars (cheeks). Tails really cannot be assessed from the dorsal view (Cooper's show graduated lengths and Sharp-shinned show even lengths, but this is best assessed from the underside of the tail). Sharp-shinned Hawks do not show grey cheeks, either. The grey cheeks are exclusive to adult male Cooper's Hawks, and the very bluish slate colored back and wings further support male (female adult Coops are duller).

Thanks tmff!