East Tennessee Hawk ID Help 1.0.0

Hi everyone, I need some help identifying this hawk(s) photographed in East Tennessee within the last couple weeks.

All photos were taken in the same area approximately 200’ from each other. 

One photographed during a heavy rain, three of the same hawk perched high on a dead tree, and the last taken while perched on a sign.

I have asked local experts and they think it’s a young Cooper’s Hawk or Sharp-shinned Hawk.

Any help would be appreciated. Thank you kindly, Richard