I dont know, i have a feeling this is a Sharp Shinned Hawk, very very similar to a Coopers Hawk. Sharp Shinned are a little smaller and are very common in our are this time of year. I had one on my deck a couple years ago. He/she shredded my picnic table where it hung out all the time watching the bird feeder. My aunt stopped by who is an ornithologist and she explained the difficulty distinguishing the two birds.
Identifying Cooper's and Sharp-shinned Hawks