Got these two 8 week old (?) black copper marans and have read through loads of sexing info but still can't manage to do it. The first chick is bigger, has creamy/white legs and red head bits and is coloured an iridescent black with bits of white on it's wings, breast and head. The second chick is smaller with yellow legs, the black iridescent feathers and less white than the first chick and bits of brown feathering with a lighter comb and wattle. Tail looks the same on both. Most feathers on second are the same black as first but can't see it in the picture. Any opinions would be helpful please! (Also not 100% sure they are BCMs)