It buzzes outside my windows and the birds seem to be happy, to find food. That was in the summer time so when she came flying with their offspring. But I was surprised that the price has changed and I had to pay 2 euros more at two buckets. But the quality is good and the packaging ensure easy removal of cores and which is important to me. And it's no extra work because it is a very clean feeding on balcony and windowsill, because there remain no shell fragments.