The top picture was attached to a message sent by Jerry Liguori which is include below:

Message received  from Jerry Liguori:

A friend at HawkWatch e-mailed me this photo (attached) [top picture] and said the consensus on Utah birds a few weeks ago was that it was a Cooper's Hawk. He is convinced it is a Sharp-shinned Hawk and asked me about it.. Absolutely no doubt about it.....definitely an adult sharp-shinned. Small head/bill, large eye appearance, narrow legs and small feet, short narrow square-tipped tail that shows no graduation. rufous streaked cheek and dense barring to the underside. Male Cooper's can have dense barring but it will more orangish and with a dark red eye such as
this, male Cooper's will have a gray cheek and nape. Not one Cooper's trait on this bird, it is perfect for Sharp-shinned.

please post this if it will help people since adult accipiters are so similar and easily confused.

take care,
Jerry

<end of message>

Jim Lofthouse has sent in the original pictures plus a couple more (the last two).