Need Help IDing Chick Breed?

[LAChickens]

4 weeks old
I have 6 of these, they look nearly identical
Yellow legs
Yellow heads with eyebar
Yellow chest/belly
Patterned body and wings
Very friendly

 

[LAChickens]

I believe these are Partridge Penedesencas.

 

[LAChickens]

I was wrong, these are Barnevelders - now 9 weeks old
Very friendly birds. Am hoping for double penciling.