White runner with grey beak- cross or purebred?

[Amer]

She's only 11 weeks. In the facebook group I'm told shes a blue splash

Just splash. Like bbs in chicken genetics. (And bbl turkey genetics.)
Another word for silver.

 

[PirateGirl]

Just splash. Like bbs in chicken genetics. (And bbl turkey genetics.)
Another word for silver.

Yes exactly... you breed 2 blues (if I got this the right way around) and you get blue, black, and splash offspring. That's why I asked if the birds pictured were all related, because the OP has blue and black also, so this one being splash makes sense