Sexing 3-4 week old wyandotte x chicks I was wondering what sex you think these are the one on the right is definitely a roo but what about the other

[Sanne424]

 

[Sanne424]

I don’t know where I was meant to put in my question? New to this
So any ideas on sex of the 3 week old ok the left? Both from the same parents
Pure Wyandotte roo and mum is a wyandotte crossed with a Minorca

 

[HappyClucker7]

The one with a bright red comb is a cockerel. The others look like pullets for now.

 

[Sanne424]

Thanks I get mixed feedback I hope you’re right the black one is stunning