Gavin, Least Terns should be over by now. Not sure there's much going on at Wako, maybe the Stilts are still there? It should be very hot. Green Cay is repairing the boardwalk, which usually makes a good pair with Wako.
ALthough I have not been there in a while, I'm sure the usual suspects will be there.
Last year by this time, there were Snail Kites in Loxahatchee, but I have not heard anything this year. Long walk there, though and feral mosquitoes
Good luck and safe trip!