I got 6 chicks 3 weeks ago, 2 white silkies, 2 black silkies, a sultan, and a bantam Polish. The sultan is the biggest of the 4 now, and turning quite beautiful (and she has the SWEETEST personality!) The silkies are growing, too, but the Polish is still so teeny tiny! She's feathering out at the same rate as the sultan, but is about half the size now! When I got them, the sultan was the biggest, and the Polish was the smallest, but now the Polish is like half the size of the sultan,a nd the silkies are much bigger than her now as well. Is that normal or should I be worried? She's active, eats and drinks just fine, just isn't growing as fast as the others. I have some older Dutch bantams, which I thought were supposed to be one of the smallest breeds, but this Polish is smaller than they were at this age. Her head pouf is quite amazing these days, though. lol. It's huge and perfectly round on top of that teeny tiny head!