I've had a better look on my big screen. Do you happen to know the size of it? Rough guide is smaller than a crow it is a sharpie, bigger than a crow it is a Cooper's. There is one other possibility, what I meant to say earlier wasn't harrier, it was Northern Goshawk. If you have another shot showing the tail feathers, a Coopers will have evenish banding while a goshawk will have irregular banding.. It is immature whatever it is...