RIR Hen Or Roo?

[Chickababie01]

My chicks are 3 weeks old now I want to know if it’s a Roo or a hen , HELP !
I have 5 of them so how do I do this ? Okay so 1-2 is called Jiddy
3-4 one is chip , picture 5-6 is Rico , picture 7-8 is lucky , picture 9-10 is heihei
Comment their names and let me know if they’re Roos or hens

 

[BreanneRN]

3 weeks just too young to tell, really. Watch the combs for reddening and growth over the next 3 weeks or so.

 

[itspebbl]

2x
You can repost pictures then, too