Six different breeds 2 weeks old - pullets and/or roos?

[NatJ]

Aren't Black Rocks just one name black sex links can go by?

Sometimes yes, but they do not breed true.

So either the seller has a pen set up to produce black sexlinks (one color of rooster, a different color of hen), in which case that chick would have to be male because of the barring.

Or else the seller has "Black Rocks" (black sexlinks) that they are using to produce chicks, which would make mixed chicks that cannot be sexed by color. In that case, a chick with white barring could be male or female.

 

[kattabelly]

Sometimes yes, but they do not breed true.

So either the seller has a pen set up to produce black sexlinks (one color of rooster, a different color of hen), in which case that chick would have to be male because of the barring.

Or else the seller has "Black Rocks" (black sexlinks) that they are using to produce chicks, which would make mixed chicks that cannot be sexed by color. In that case, a chick with white barring could be male or female.

I know they don't breed true. I read your previous post as saying it couldn't be a "Black Rock" if it's black with white barring (though looking back at the photo it has the head spot but the wings don't really look properly barred) but now it seems like you're saying there are two ways someone could end up with a black chick with white barring that was sold as a "Black Rock", so I think I've probably misread you somewhere and got confused

 

[NatJ]

I know they don't breed true. I read your previous post as saying it couldn't be a "Black Rock" if it's black with white barring (though looking back at the photo it has the head spot but the wings don't really look properly barred) but now it seems like you're saying there are two ways someone could end up with a black chick with white barring that was sold as a "Black Rock", so I think I've probably misread you somewhere and got confused

What I really meant was, Why are they calling it a "Black Rock" if it has white barring?

Most private sellers do not have the correct pens set up to produce any kind of sexlink chick. And some people think (wrongly) that if they breed a male and a female of some kind of sexlink, they will get more of that kind of sexlink.

So I am suspecting there is something not right about the way that seller is labeling the breeds.

So I speculated on a few things that could be going on. I think I may have confused myself by now :lol

 

[BonnieBlue]

Somewhat related question:

My three New Hampshires, one Welbar, and two Olive Eggers will be 5 weeks old tomorrow. At what age would be best for pics to help me determine if males or females?

 

[NatJ]

Somewhat related question:

My three New Hampshires, one Welbar, and two Olive Eggers will be 5 weeks old tomorrow. At what age would be best for pics to help me determine if males or females?

You could take pictures now and start a thread with them. Sometimes males will be obvious at that age. Some birds show sex-specific coloring by that age. (Welbars should.) Sometimes you get told that your particular birds aren't obvious either way, and to post new pictures in a few weeks. If that happens, wait a few weeks then take new pictures and add them to the thread.

 

[BonnieBlue]

You could take pictures now and start a thread with them. Sometimes males will be obvious at that age. Some birds show sex-specific coloring by that age. (Welbars should.) Sometimes you get told that your particular birds aren't obvious either way, and to post new pictures in a few weeks. If that happens, wait a few weeks then take new pictures and add them to the thread.

Thank you. I'll do that.

 

[UKDuck]

I've got an update. The chicks are 4 weeks now. Whilst I can tell that Black rock is definitively a roo, as well as the choco orpington, but the yellow chick is a mystery still.
I suspect the following:
Black rock - roo
Olive egger - pullet
Choco - roo
Yellow - undecided, though very friendly, so gives roo vibes
BPR - slow developing pullet
BLW - slow feathering pullet

What are your thoughts now?

 

[NatJ]

I've got an update. The chicks are 4 weeks now. Whilst I can tell that Black rock is definitively a roo

Wow, he is definitely showing a big comb for his age! Yes, a male for sure!

as well as the choco orpington

I agree about him too.

but the yellow chick is a mystery still.
I suspect the following:
Black rock - roo
Olive egger - pullet
Choco - roo
Yellow - undecided, though very friendly, so gives roo vibes
BPR - slow developing pullet
BLW - slow feathering pullet

Your predictions make sense to me, although I wouldn't be too sure about any of the pullets at this age. A slow-developing male can hide for quite a while.

Good point about the yellow one and how he/she acts.

What are your thoughts now?

I would say you have two definite males, and a bunch of maybe-females that could still include a few males. The more time passes, the less likely that any more males will appear.