The black copper marans are approximately 8-9 weeks old. We have 4. The first shot is of 2 hens, I think. The one in the front has always been very small. She is about 1/4 of the others, and yet the same age. The second picture (with the buff silkie) has the other 2 (and the small one to the right.) The 3rd shot has a side/back view of one of what may be a roo/and no leg feathers like the others. Do the roos have the bluish green color on their tails like other roos?