Pullet or Roo?

[Jackiesue92]

Hello, I recently bought 8 chicks straight run. Two are the barred rock variety. I am still very new and learning as I go. Both of my barred rock chicks seem larger and a little more aggressive then my other chicks. I think they may be cockerels. What do you think? They are about four weeks old. Thank you.

 

[Poultrybonkers]

there pullets

 

[keesmom]

They aren't Rocks, not with that leg color. They may be black sex link cockerels.

 

[Poultrybonkers]

They aren't Rocks, not with that leg color. They may be black sex link cockerels.

4 weeks the combs would be bigger