Who R U?

High in the birch tree sat a bird.  It was not one of the normal cast of characters.  With my unaided eye, I could not identify the species.  Seven power binoculars didn’t help.  The camera, however, did.  I had to process the images a bit.

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I believe this is an American Kestrel (Sparrow Hawk).

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The swallow-like tail shows better in this shot.  When it flew, it looked a lot like a swallow, but larger.

It is obviously a member of the falcon family, but which?  Can anyone help with the identification?  Sharkey?