By pure coincidence Jeff Johnson and his brother Tim found me atop "Jeff's Dune" at Muskegon State Park this morning. Larry Burke and Pat (?) (another Grand Rapids birder) also showed up.
From 11:30-12:30 we recorded 57 raptors: Sharp-shinned Hawk-47, American Kestrel-4, Cooper's Hawk-2, Broad-winged Hawk-2, Northern Harrier-1 and Turkey Vulture-1 (all but the redtails, eagle and vulture apparently migrating).
Here are Jeff and Tim scanning north and an immature Red-tailed Hawk perching south.