What breed is this?

[Toshia]

I bought several barred rock chicks from Tractor Supply months ago and two of the chickens look very different from barred rock. Any idea what kind of breed this is? Their feathers have a green tint to them in the sun. They are almost 5 months old.

 

[junebuggena]

Australorp.

 

[drumstick diva]

Black Australorp

 

[Toshia]

Thank you both very much! I have reading that they are very friendly birds. My two seem to be a bit more aggressive than my RIR. Maybe they will come around. Thanks again!