The girls are not drawing as much comb as they did earlier. There is roughly a little over 1/2 of the TBH with comb and almost all have brood in the lower portions of the comb and a honey band near the top. Will they continue to add and fill the whole hive body or is this about it and they just like the extra space? There are 17-18 bars drawn at this time. I noticed yesterday that they have added more honey to the last bar the away from the entrance. Will they build past that bar or do I need to add empty bars in front of it to keep them working?