She is most likely a Columbian Wyandotte, but a shot of her comb would confirm that.
They are pretty chickens . If you got them from tsc there is a toss up of what you have. I thought I was buying 4 sapphire gems,1 golden comet, 1 Isa brown, 2 Americanas, all supposed to be pullets. 1 is a cockerel which was fine I did want a Roo but I don’t know what breed he is, someone was telling me he is a Dixie jubilee??? I believe I did get the Isa brown and golden comet but the others is EEr’s they are pretty and healthy so I’m happy.