Black Australorp Difference between cock and hen

[dansdeals3489]

I have a stupid question that I was hoping could be answered. I have 4 Buff Orpingtons and 4 Black Australorps. 2 of the black australorps have larger comb and waddles. They are 16 weeks old. They look like they could be roosters, shouldn't I have known by now? I am new to chickens and this is my first flock and I am really enjoying them. I purchased all hens (supposedly) from Meyer hatchery. How can I tell if they are roosters? I obviously haven't heard anything yet, and it seems that these larger comb and waddles just appeared within the last two weeks.

 

[chickenfever]

Can you post pictures?

 

[dansdeals3489]

Sure, these are all the pictures I have now

 

[dansdeals3489]

I am not sure how to make the pictures bigger

 

[dansdeals3489]

 

[ella]

Pics are really too small to tell, but no obvious roosters in there. At 16 weeks the pullets do start developing combs and wattles so don't despair!

 

[Riocotesei]

I have two B.A. girls and they just suddenly started to get bigger combs and waddles, Often this is a good sign they are getting close to laying age. You could consider it something like a growth spert. I think you would know by now if you had a roo. Can you get individual pics of them? That would help alot.
Thats a cute mix you have, buff and black. They complement eachother

 

[dansdeals3489]

Thanks! I will try to get some more pics today

 

[chickenfever]

I have 5 wk old blk australorp chicks. The hatchery marked my roo for me and from about 3 wks you could already tell the difference between him and the girls. Much larger comb and very red.

 

[dansdeals3489]

Cool thanks for the info, I am going to post more pics here in a minute just to be sure. These guys sure are my buddies!