What colors do you breed to get silver blues?

[GR bantams]

Could u breed silver duck wing and blue or what to breed to get silver blues

 

[Amer]

You need a birchen base.
Brown red or birchen for example, are birchen based.

 

[GR bantams]

So what would u breed to the brown red ? To get silver blue

 

[Amer]

So what would u breed to the brown red ? To get silver blue

Blue silver duckwing.