Yes, those are definitely not Brown Leghorns. The four girls are Red Sexlinks (aka Golden Comet, Cinnamon Queen, Red Star, Golden Sexlink, ISA Brown, etc.) and the roosters are Rhode Island Reds/Production Reds.
A Sexlink is a F1 hybrid, in your girls' case, likely a Rhode Island Red rooster crossed with a Rhode Island White hen. This makes red hens and white roosters, which are sexable by color at hatch. They are excellent brown egg layers. This is the #1 "breed" used commercialy for brown egg production. However like Speckledhen said, this cross does not breed true. You'll get excellent brown egg laying birds, but they will no longer be considered a Red Sexlink and the chicks will not be sexable by color at hatch.
So will chicks hatched from these guys be red sex links as well?
A Sexlink is a F1 hybrid, in your girls' case, likely a Rhode Island Red rooster crossed with a Rhode Island White hen. This makes red hens and white roosters, which are sexable by color at hatch. They are excellent brown egg layers. This is the #1 "breed" used commercialy for brown egg production. However like Speckledhen said, this cross does not breed true. You'll get excellent brown egg laying birds, but they will no longer be considered a Red Sexlink and the chicks will not be sexable by color at hatch.