They could just be dunking themselves. Do they look cold when the wet themselves in it? Do they shiver and struggle then clump together? I would observe them and make sure their heat lamp is warm
How deep is the bowl? I always fill it up with marbles so there are barely any places they can fall into. Also they can drown if it's too deep they can submerge themselves into!
What I do is I have an old 'magic bullet' blender thing that I run the food (gamebirds starters) through a few passes to get it to a finer grain. I have seen people use a regular blender for this but you should wash it very carefully when you are done because no one wants quail food in their...