Remaining and new growth vegetation holds all sorts of sunfish at last ice. Shallower bowl-like lakes commonly present acres and acres of weeds, so it pays to discriminate. Look for lanes, pockets, edges, and the greenest of greens. A good rule of thumb is start on the outside weededge and work inward. Flowages are other bluegill magnets.
Spring thaw carries warmth and a wealth of panfish edibles into a lake, clear or dark watered.
Incoming water can take the form of a creek or river inlet, general spring runoff, or a bog flowage. Bogs, frequently associated with fertile lakes, bring warmth and forage to the table. Bog edges, like those found along bulrushes, drop quickly and offer exposed feeding and resting areas. Waters surrounding a bog can be several degrees warmer than water sitting only 10 or 20 yards away. Again, rotten ice and open water are clues to finding the warmest water.