Mr 3 RIR's - are they all roosters?

[2000lb Hen]

My 3 RIR's are around 9 weeks old, when they were younger everyone thought they were all roosters. I noticed that 2 look more like roosters than the other one does. I'm new to owning chickens so I have any idea if they are all rooster or not. Please tell me what you think.

Thanks

All three RIR's

This is the one that looks different than the others.

 

[LeBlackbird]

That's a hard one, I'm gonna say 2 roos, 1 hen

 

[Mandalina]

They look pretty rooish to me.I agree that the last one has smaller wattles but they are really red just like the others.

 

[Papadavid]

Same her, 2 roos and a hen