heres the good news, when u finally do find thier winter hangouts, they will be there most of the winter..Finding out the feed schedule then becomes the challenge.. feeds will be short and times change, but early morning late evening is always a good time to try. look for ledges near deep and shallow water. shelves with a double breakline can be great.
look for bird activity, they must eat and usually keep close tabs on the shad,, the gulls and terns will rest on banks near where they hunt for shad. look for crappie ghosting underneath pods of shad.,. when the shad pods are scattered up and down thru the water column it usually means the crappie are feeding,, the crappie can pretty much feed at will when the shad gather in large schools, they just follow them around and bust into the schools, then its over until they are hungry again,, thats why some of the heaviest fish are caught in the wintertime.,
remember this on deep lakes, most shad will go deep.. but on shallow lakes,( I call a shallow lake 24 feet or less..} they will go in the creeks...u can catch crappie in a foot of water in the wintertime on a shallow creek. try to find a spot in the creek that has a bend, with slightly deeper water,,, like 4 to 8 feet,, get a long jig pole and dip a jig just like springtime

I’d tell you but I know some people that get mad about it.