I'm thinking a cockeral and pullet but what do you guys think
sex of these two?
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I think the bigger one (left side) may be a cockerel and the one on the right is a pullet. Still really early but, a just a guess.
I don't know anything about Cochins but I do know that Wyandottes are hard to sex early. I had two that started to pink up around the comb and wattles at 4 weeks, then nothing changed for weeks. They are now 11 weeks old and the comb and wattles remain unchanged from that pinkness! Other members told me Wyandottes were hard to sex, now I've got experience to say yes indeed!