My porcelain D'Uccle......6 weeks. BOY? That comb is awfully big and red for a little guy....this one is my teeniest.
Wyandotte #2 - Iron Peep.....I'm guessing boy, since his comb area is redder than the other. He is fast, aggressive. He is smaller than the other one, though.
Wyandotte #1 - Java - I'm guessing girl....since the comb isn't as red, but it is bigger than the other.
How about the cochin up front (Thora) and the NN (Jewel)??? Both my NNs look the same in size and development....I thought one was a boy at hatching, since it was bigger...but they've grown to be the same size.