The babies are now 15 / 16 days old. They get fed constantly, Gayle and Mr. Business must be exhausted. But they are doing a great job, the babies have grown a lot in the last couple of days, and yesterday, they started to exercise their wings. They are now becoming very adorable as they become more aware of their surroundings. There is constant preening going on too to open the sheaths and get those feathers ready for the big day. Now again, the larger nestbox size is to their advantage because they have more space to spread their wings.