Red star or Rhode Island Reds - which is which?

[Beckyhsinglsc]

We are new to chicks/chickens.
We have 3 1/2 week old chicks. Two are supposed to be RIR and two are supposed to be Red stars (Red sex link).
When we got them at the feed store, they were in separate bins, but the guy at the store was a little confused about which were which.
They are very similar in feather color so I can't tell.
2 of them had black lines on their heads and he told us that they were the stars, but I read in BYC that that's a trait of the RIR. Also the ones with the black stripe had just a black spot on their beaks, the others had much more red on their beak. Now that they are feathering on the head, I can't see the black stripe and can only tell the pairs apart by their beaks.
Can anyone help me determine which are which?


Here are 3 of them at almost 2 weeks. You can see the line on the two in the back.

Here are two of them at about 3 weeks.

Thanks for your help!

 

[Julie_A]

They look like the RIR pullet I hatched from my RIR hen and rooster. She's about the same age.

 

[HEChicken]

I'm not seeing any that look like my Red Star, but since there are several different combinations of parents that will produce a red sex-linked chick, I can imagine the chicks could look a little different? As the PP said, the ones you showed look like RIR's.

 

[natkev]

i can't see any red star breed in it is most probably a rhode island red

 

[catdaddyfro]

I say they are production reds or New Hampshires, not dark enough to be RIReds(even hatchery type) or maybe Cinnamon Queens/Cherry Eggers(red sex-links) not GSLs (no white in the tails or necks).

catdaddy

 

[chickenman12345]

RIR

 

[Wyandottes7]

They look like Rhode Island Reds to me.

 

[One Chick Two]

Production Red

 

[donrae]

Considering the OP is from 2009, the birds in question are quite likely dead by now. I'm sure the OP knew the breed at some point between now and then