Pale, small comb

[Jjccjess]

I have six chickens. Bought from feed store, estimated to be 17 weeks old now. No laying yet. 3 sex links and 3 buff orphingtons.
Everyone is acting fine and appears healthy, but one of my orphingtons has a very small, pale comb. I've checked them all for mites and I don't see signs of any infestation. Is she just young? Underdeveloped? She is more small/lessfluffy than the others. My black sex links have way bigger Combs than my orphingtons but 2 orphingtons have larger Combs than one odnthem.
First time having chickens.
Raised them from around 1 month

 

[Eggcessive]

Pullets develop and mature at different rates. She may just be not as close to laying eggs as the other chickens. Is she active and eating, drinking as the others?

 

[Jjccjess]

Pullets develop and mature at different rates. She may just be not as close to laying eggs as the other chickens. Is she active and eating, drinking as the others?

Yes, from everything I've noticed. She's just smaller.

 

[Eggcessive]

I have had at least 2 of most breeds of my chickens that I have raised, and many will be different in size or develop at slower rates. If there has been any illness, such as coccidiosis or respiratory infection, there can be some stunting or slower development. But she will probably start to get a red comb in a few weeks.