Is there any rule of thumb regarding which chicks develop curly tails first? Among my week old chicks, 2 of the BRs and maybe 5 or 6 of the Dellies have the cutest little tails. The others have nothing to speak of. I'm about 98% sure one of the BRs is a cockerel and I'm hoping maybe this is a clue about the Dellies since the tails don't seem to coincide with age.
Usually the BR girls get tails before the boys, but the boys catch up fairly quickly. My Delaware cockerels got very pink combs at about four weeks old, but I dont recall a tail difference.