At what age would we see Austrolorp combs and wattles?

[Our7Wonders]

I have a RIR roo that just made us aware of his manliness lately. His comb is double to triple the size of the other RIRs and is distinctly red, and has wattles are developing. None of the other RIRs have any of these signs.
Also from the same hatchery shipment I have 14 Australorps who all have very small (next-to-nothing) combs and no wattles at all. If we had roos in the bunch would we likely be seeing some development in them by now? Or are they later than the RIRs?

 

[punky rooster]

how old are they?

 

[Our7Wonders]

Sorry, they are 6 weeks today. My RIR really started looking ROOish just in the past few days. Just wondering if Australorps would present this early or if I have to keep watching for a while.

 

[Goose and Fig]

Most single comb roos are pretty easy to spot by about 4 weeks. Some sooner- so you probably have all pullets.

 

[sheila3935]

by 6 weeks you would most definatly know if your australorps were boys. Mine got red combs and wattles by the time they were a month old. This is Jet he is 5 weeks old

 

[gordonburrito]

Here is my Australorp pullet

Maybe a week old or so at this point

about 4 weeks old

Approximately 6 weeks old

Just after she started laying

Hopefully those will help you.