2 RIR chicks - did we get boys or girls? HELP?

[Fombellchicks]

Hi,
If anybody could give us an idea what we have hatched last weekend, it would be greatly appreciated. I read the dark line on the head might indicate a girl, one missing a boy. Is that correct? It seems like different people write different things...
THANK YOU!
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Chick 1 - Mister Pretty

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Chick 2 - Miss Pretty

 

[Katy]

It's really too early tell whether they're boys or girls, but the chipmunk one isn't an RIR....at least my RIR chicks aren't chipmunk striped.

 

[4-H chicken mom]

I agree, it's too early to tell. You will have to wait and see.