Barred Plymouth Rock hen or roo

[Homegrown15]

Hey yall!
Im sure you get a lot of this same question but im having a tough time finding barred plymouth rock specific gender. My chickens are 11 weeks of age this week and being new to chickens im super confused. I purchased 6 barred rocks from tractor supply and they were supposed to be all hens. Im really starting to question that at this point as I have 3 that look the same that im pretty positive are hens but the other 3.... I keep hoping they are hens but im afraid I am wrong. Could you all identify them for me and point out what the difference is between the hens and roo. Im sure the waddle is a dead give away but I am hoping for confirmation. The first 3 pics I am sure are hens

But I am thinking these next 3 pics are roosters. Can you confirm? And if they are what should I do from here as I dont think you can keep 3 roosters together. Unless im wrong.

Please exuse the weeds, watching chickens is a lot more fun than pulling weeds

 

[krogen]

I would agree with you, they are roosters.

I have 6, six month old barred plymouth rock roosters and 32 hens. At least so far, I haven’t seen any real fights. They started hitting maturity around two-three weeks ago.

 

[BigBlueHen53]

This picture should help you.

The cockerel is at left. See how much lighter in color he is? That's because he has inherited a gene for twice as much white in his feathers as the females. So don't even worry about tail feathers, combs and wattles - color in this breed is a dead giveaway.

 

[rural mouse]

You are correct on the 3.

Barring is actually on the sex chromosome in chickens. Birds are ZZ/ZW (male/female). This means hens are ZW, with 1 copy of the barring on the Z gene (look black with thin white stripes). Roosters are ZZ, making them double barred (look white with thin black stripes). Pure bred hens are darker toned than purebred roosters. ONLY roos can be double barred.

Now, does this mean roosters cannot be SINGLE barred? No, but a single barred rooster can ONLY come from a barred bird crossed with a NOT barred bird. Many sex-link lines are based around this idea, so "is my XYZ breed (insert sex-linked hybrid) hen actually a roo" questions are answered based upon single barred cockerel.

 

[Homegrown15]

Awesome! Thnak you all for the help!