Polish Chick Comb at what age?

[RedOdette]

I have 3 Polish chicks I think approximately one month old. They are not yet fully feathered, but two appear to have little bumps forming on their head at the front of their crests. I think it's the start of combs. At what age do they usually start developing? Do they develop earlier on Roos or is it about the same time regardless of sex? My hubby is convinced at least one of them is a Roo. I will try to take pictures when I get home.

 

[Yorkshire Coop]

Often due to their crest polish combs can’t often be seen. But if you have clear signs at 4 weeks this could be an indicator of a Male but on the other hand this may not be the case as polish are notoriously hard to sex.

Pics would be great when you get a chance but even at 4 weeks it would more than likely still on be guesses.

 

[RedOdette]

This chickie has the most comb development I think. Also the bravest of the bunch.

 

[featherhead007]

Roos, probably. Cute, obviously!

 

[RedOdette]

Here are the three yesterday.
I'm still clueless!
Will just have to wait it out.
Sorry they're a bit blurry - they were in a flurry of activity!

 

[Yorkshire Coop]

How old are they now? The silver looks a possible pullet.

 

[RedOdette]

I'm not 100% sure. Should be 7ish weeks I think? I was told they were 1 month old around March 23, but I think they were maybe only 3 weeks then.