It's frowned upon by birders to share exact owl locations if they're roosting, but the Short-eareds, which were in flight, were over the water off the endikement. I think it's luck of the draw to see them because the gulls chased them off quite quickly after they appeared.
The outer path of the Spit seems to be good for Buntings and you can also get a good look at the ducks in the ponds, while the marsh area and the beaches around the cormorant nests give you good angles on more ducks. When I've seen hawks and falcons they've often been over on that side too, but again, it's luck of the draw - they're usually only visible for a few seconds as they swoop by. I usually find good stuff in the marsh area, which is currently accessible because of low water levels but gets cut off in the spring.