What breed is this chicken?

[Johnny17]

It's look like a black Sussex to me

 

[The Happster]

She's a mixed pullet.

 

[LadiesAndJane]

Does she have any feathering on her legs? It can be quite slight. I do not see any in the one photo of the legs. Birchen Marans look this, black with silver feathering around the neck. They have grey legs, but I would expect to see some feathering on the legs as well. Even the eyecolor looks right. Just throwing it out there!

 

[The Happster]

Does she have any feathering on her legs? It can be quite slight. I do not see any in the one photo of the legs. Birchen Marans look this, black with silver feathering around the neck. They have grey legs, but I would expect to see some feathering on the legs as well. Even the eyecolor looks right. Just throwing it out there!

She doesn't appear to have any, but that wouldn't rule it out at all.