do ameracaunas have combs?

[augiedranch]

silly question i know, but im new to raising baby chicks, and all the ameracaunas that i picked out do not have any red comb on there beak.... are they all female. or is that just a breed difference? i am just confused on the wattles and combs... both male and female have combs and wattles? just roos have bigger ones? am i right.. ? thanks
erica

 

[LilPeeps]

How old are they?

 

[augiedranch]

they are 4 weeks old

 

[kstaven]

This is a white ameraucana chick.