I have a hatchery EE that got the single comb gene. She was always so much more mature (and big) than her hatchmate. Her comb and wattles (at 5 weeks old) were much larger than even older chicks of ours...and hers were dark pink. For some time, despite her plumage, I worried she was a roo. Nope. Her face turned red around 14 or 15 weeks. I checked her vent at 16 weeks...super moist....pretty certain she was laying already as I'd noticed a brown egg here and there that I didn't recognize. Not surprised that it isn't colored as she has the single comb. Her hatchmate is nowhere close to laying yet. So it might be 4 months... but one might surprise u and lay sooner!Yeah, I can't wait to see how Coo looks grown!
Someone said Blondie looks like a Buff Orpington mix, so I thought she'd be cream colored, but she just keeps getting lighter. So she could very well turn out white. I just hope they have pretty eggs! (And I don't want to wait 4 more months to see! LOL)