Silkie chicks help

[carlib]

Hello
We just hatched 3 silkies. Both parents are all black but the chicks are not. Is that common? Also one has pale feet but I though they all had black feet.

 

[KaylorFarms]

Interesting! Are you sure the parents are full silkies?

 

[carlib]

Interesting! Are you sure the parents are full silkies?

They belong to a friend and he says yes. I have seen them as well and tgey definitely appear to be