I think you are getting the impression the eye is more in the middle than you think, you are not looking at the head of the bird from a straight on angle. The birds head is actually turned giving the illusion the head is larger than it is, and what you are seeing is the beak making the head look bigger. The eye is closer to the beak than what it appears. Being a photographer, yes the highlights are blown out on the nape, it is not blown out on the cap,meaning the nape is brighter and hence blows out easier due to the whiter colour. There is a clear separation. As stated the bird is definitely an adult. The fact the cap is more cap than hood, the location in the summer, an adult, the eye is not really centered,I would lean more towards an Adult Coopers hawk. Great picture, you never noted the size being an adult, the Coopers Hawk is closer to a crow and the SS closer to a Blue Jay. I believe this is a Coopers Hawk