Still can’t pin point breed, and what color are these silkies?

[EllingtonArrox]

Our six batams are around 4 weeks old (we think). Still not sure on the breed of the blue baby. I’ve included pictures from two weeks ago, and today. This is definitely our most outgoing chick - it’s been very upright and inquisitive since day one, and now runs up to the mesh of their brooder when it sees someone coming and will just mean mug us. I swear it wants to pick a fight.

Also not sure if our silkies are all white, or will the ones with more tan/yellow be buff?

 

[cherrynberry]

All Silkies are white. Not sure what the breed of the first chick is.