What sex do you think these are?

[Eddy G]

I'm keen to learn what sex my 7 week old chicks are. I purchased eggs advertised as ISA Brown but two of the brown chicks have prominent combs developing which makes me think they are male. Only one of the white ones is developing much of a comb. Interested if anyone has ideas of the sex. I'm not concerned about the breed or mix.

 

[Kiki]

I think If they are Isa Brown chickens then the white ones will be the males.
https://www.tractorsupply.com/tsc/c.../poultry-breeds/isa-brown-chicken-breed-guide

 

[Rhodebar Lover]

These are not proper Red Sexlinks but second generation ones. The sex linking is only evident the first generation so they’re simply mixers breed now. The two with large combs are cockerels.

 

[Eddy G]

These are not proper Red Sexlinks but second generation ones. The sex linking is only evident the first generation so they’re simply mixers breed now. The two with large combs are cockerels.

This is what I suspected. Thanks for the input.