Bantam Birchen Cochin chicks?

[Whitepines]

I have some black chicks and blue chicks but then there are a bunch of these guys. I’m thinking they might be birchen?

 

[Lacy Duckwing]

You might need to wait until they're older when they grow in their hackle feathers. Birchens have silver hackles with black bodies. Where did you get them?

 

[Skyle]

I think they will all turn black, but to be sure you'll have to wait until they are fully feathered