I have 1/4 d'uccle, 3/4 ameraucana chicks. Both parents were completely black All three chicks came out with white and black fuzz, (one has a beak beak, one pink, the last pink rimmed) I figure the 'real' feathers would grow in black. Now they're a week old and sprouting WHITE 'grown up' feathers out of their wings! Is this the d'uccle coming out? Will they change colour again as they grow?