Is this a roo

[KristiGav]

I have questioned this one from the start it has huge feet it’s rather large but so is my other black one im not sure of their breed.. it pecks seems dominate.. my chicks are 5 weeks old now

 

[BantyChooks]

I suggest posting pictures again at a later date to confirm, but it is my current thought that yes, that is a cockerel.