Can anyone tell me what gender these are?

[Vedwards]

These chicks are about 4 weeks old does anyone know the breed/gender?

 

[Happy Chooks]

Black sex link maybe?

 

[Mrs. Fluffy Puffy]

They're all roosters, they look like maybe Australorp X EE ( Because they have green feet. )

 

[KenCoesta]

How can you tell they're all roosters?

 

[Illia]

They look like Black Australorps. . . Top is a cockerel, bottom two may be pullets.

How? The top one has a very defined, colorful comb. The other two have small, even type combs so far.

 

[Mrs. Fluffy Puffy]

Quote:
Their combs are very big.
ETA: The aren't pure breds, they're mutts.

They are EE X BA or EE X BSL