Found in grassland bordering hardwoods along San Pedro River. Very difficult to photograph. When it has prey it tends to perch deep inside the vegetation. As this was a thorny bush, it was painful to try to get a good angle. Also it tends to like to stay put once it 'hangs'. I moved it several times to try to get a good photo by bumping the perch branch. It took a bit of bumping to get it to move to a new branch.

Pretty sure it's Blepharepium sonorensis. Confirmation/correction appreciated.