Are they roosters?

[Chicken_Little_AGray]

Hey there, i'm new to the chicken community. I just got 3 Rhode Island Red chicks from a store, (They were the only 3 left) and i'm starting to think 2 of the 3 are males. Can anyone tell me if they are males? The 2 I think are males have different wings then the other, and are generally bigger. They are a week and 4 days old at the moment, and were all supposed to be female. The first image is the one i think is female.

 

[rural mouse]

Feather sexing only works when they're specifically bred for it. At this point, you're beat option is waiting for wattles and/or comb colors. Should be pretty clear by 8 weeks.

 

[nuthatched]

X2 feather sexing doesn't work for 95% of chickens.