can anyone help me identify some of my new 5-6 wk old chicks

[LuLu68]

I got them from my local Atwoods. They're all mixed together

 

[LuLu68]

SO WHAT IS SHE? She was black with tiny bit of yellow on her underside...Then she feathered out black, then the copper colors started appearing.

 

[LuLu68]

 

[LuLu68]

Another pullet I'm unsure about.

 

[LuLu68]

Pullet