I found this on the net:
=====
Don't give them water except as part of the food as they drown easily, don't use milk, birds can't tolerate lactic acid, nor worms as most birds cannot tolerate the parasites associated with them, (not even Robins eat them all the time.). Don't use sugar (except dextrose) or salt, birds have no use for them.
=====
I guess I wont be giving him worms yet.