Roo or Pullet?? Please help

[vbdeleon]

We are thinking they are around 3 weeks. I am thinking that I have only one girl in the group, but am unsure. I tried to get several shots of each one. Any input would be great. Thanks ahead of time.
Number one,

Number Two, this is the one I think is a girl

Number three

Number four

Number five

Thank you for looking at my chicks and helping out. You guys are awesome!

 

[Chosen Chickens]

lol, they all look like the exact same bird to me! I know it is stupid to post if all I am going to say is it seems to early to me, but it seems as far as feathering, they are all about the same far along. Are there any that look bigger then the others?

 

[vbdeleon]

They are all the same size except for number two, the one I think is a girl. They do all look alike, that is why I am having a hard time, they are all feathering about the same.

 

[jjrabbit2]

My guess is

#1 Roo
#2 Pullet
#3 pullet
#4 Roo
#5 unsure

 

[jeslewmazer]

Wondering if you know what breed they are??? Why I ask is because #3's breast feathers look lighter than #1, but it could just be the pics.
But just guessing I would have to agree with jjrabbit2
1-roo
2-pullet
3-pullet
4-roo
5-roo but not sure could be pullet

 

[vbdeleon]

They are suppose to be RIR; that's what we were told.