Help! What breed are my new chickens?

[crazychickenlady95]

I pretty much saved these girls from a bad situation. I picked these beauties up today and lady I got them from has no clue what they are. To me they look like Black Copper Marans, but she says their eggs are light brown and don't they usually lay very dark brown eggs?

My question. Do you think they are Black Copper Marans? Black Sex Link? Black Australorp? I'm attaching a few pictures. Thanks in advance!

 

[Punkybrewster]

Look like black sex link to me

 

[1muttsfan]

X2. They usually are good layers.

 

[OkieChickenGal]

Black sexlinks