I just got bees two weeks ago, and person I got them from said to feed them. I tried a hive top feeder and never found any bees using it so I took it off. There is open honey and now capped honey in the super.
As an experiment I tried sprinkling the top bars with sugar sryup to see if they wanted it, but hadn't liked the chosen vehicle. And they were all over it.
Next time I went in I tried it again, and now there was activity all over the outside of hive, too. Lots of bees milling around in the air, lots more coming and goings, and a log jam in the entrance. One pile of bees didn't move much. But none of it seemed aggressive. If I did set up a robbing situation, how can I tell what is bee excitement and what is a bee battle with outsiders. There was an increase in buzzing noise. I have a hard time distinguishing between bee varieties, I notice some darker and some lighter bees, but I've always noticed that. Today it's just busy bees as usual.