is this a pullet or roo?

[nittanyxi]

this is my 9 week old black Australorp (although it could be a mix) I'm not familiar with the breed. This looks like a pullet to me. Does anyone think it could be a roo?

 

[Tuffoldhen]

Pullet.

 

[Liana]

Looks like a pullet to me.

 

[ekemily]

pullet

 

[pgpoultry]

I agree with everyone else, pullet,

Sandie