I have a gorgeous jet-black silkie hen who I know is 16 years old. She is the sole survivor of a fox visit three years ago, which took all the other pensioner silkies. She lives happily with a small flock of Barnevelders (in a fox-proof run), had not laid an egg for many years but is quite healthy and active. But over this last month I am finding one or two bantam-sized pure white eggs each week in the nest, with the larger brown Bv eggs. These are obviously not Bv eggs and there are no other hens but the old silkie. Is it possible for such an old bird to start laying again? I wouldn't have thought so,though I do know that silkies are long-lived (foxes excluded) but I never expected to see another little bantam egg. I will try to attach a photo of some eggs, showing the difference. What is going on?