What chicken breed is this?

[On1rim]

Got them at tractor supply a week old, supposed to be Plymouth Barred Rocks.? She's like 6 months old. Got 4 actually all their names start with Black. 1. Black Beauty
2. Black Pearl
3. Black Magic
4. Black- Ness

 

[ChattyChickens4Life]

Black Australorp? Good luck!

 

[Chicken Girl1]

Welcome to BYC from a fellow Virginian! I think you might have been given Black Australorps. What did they look like as chicks?

 

[Gray Farms]

Check the bottom of their feet. Yellow = Black Jersey Giants, white/pink = Australorps. The one pictured look like a Jersey Giant to me.

 

[drumstick diva]

Looks to have brown highlights in the feathering rather than Australorp shading

 

[Frazzemrat1]

That looks like a Black Jersey Giant to me...

 

[Farm boy 14]

Jersey giant and maybe australorp

 

[lilmarie84]

A few more pictures would help do they have green shine to their feathers Im not personally familiar with the jersey giants but I am familiar with the Australorps and she looks like my girls use to from the one you have posted but more pics could help

 

[Frazzemrat1]

A few more pictures would help do they have green shine to their feathers Im not personally familiar with the jersey giants but I am familiar with the Australorps and she looks like my girls use to from the one you have posted but more pics could help

Jersey Giants have the green sheen as well. The biggest difference between BJG and Australorps is the bottoms of the feet, and the size.