Blue/Black Marans and Araucana chicks 4 weeks old(ish)

[Bleu maran]

Thoughts on who is a pullet/cockerel or too early to say? 4x Marans and the last pic is a closeup of the Araucana

https://imgur.com/a/vy8AqQK

 

[InTheHenHouse_]

How old are they? Roosters should start to get red combs and waddles around 1 month to 6 weeks.
Hens can get pink in there comb around the same time so don’t confuse the two.

 

[Bleu maran]

Approximately 4 weeks old