I think I've figured out the roos vs hens on the D'uccles, they seem pretty easy to distinguish. Just wanted to check and see if my guesses jive with the more experienced folks' opinions. On the Wyandottes, I have not much clue. Some combs are pinker than others, but again, I have no idea. The Sebrights seem to be the hardest. I cannot begin to guess.
D'uccle, I think roo:
The Wyandottes:
The Sebrights:
D'uccle, I think roo:

The Wyandottes:





The Sebrights:


