RIR chicks - gender guesses please

[ZazasMom]

Hi fellow chicken lovers! I would love to get some educated guesses on the genders of these two cuties. About 4.5 weeks old, Rhode Island Reds from Tractor Supply, straight run. They do a little sparring every now and then, but not sure if that's enough to say they're roos? Their legs look the same (no picture). Their combs are a little bigger than those of the other 4 pullets that are the same age (Black Sexlinks, ISA Brown and Golden Comet). Thank you all!

Chick A (in the back on first picture):

Chick B (in front on first picture):

 

[The Ranch Girl]

It’s so hard to tell at such a young age but my best guess is chick A is cockerel and B is pullet

 

[HorseGirlAbby]

They're a little young, but I think they're both cockerels. I'm more sure on chick A, but chick B is probably a cockerel as well.

 

[Farmgirl283420]

Hi fellow chicken lovers! I would love to get some educated guesses on the genders of these two cuties. About 4.5 weeks old, Rhode Island Reds from Tractor Supply, straight run. They do a little sparring every now and then, but not sure if that's enough to say they're roos? Their legs look the same (no picture). Their combs are a little bigger than those of the other 4 pullets that are the same age (Black Sexlinks, ISA Brown and Golden Comet). Thank you all!

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Chick A (in the back on first picture):
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Chick B (in front on first picture):
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Chick A looks a lot like a cockerel for chick B I’m also leaning toward boy.

 

[ZazasMom]

Thank you so much! These pictures are only a few days old but since then Chick B's comb has gotten a bit more red... So, probably both roos, but I will come back here to update - thank you!