Satin chicks?

[Chikitty]

I just incubated 12 "silkie" eggs. 9 hatched, 7 are definitely silkies but 2 are not. They are even smaller than the silkies, have 4 yellow toes and beak and their skin is not black. They just look like little yellow chicks but with feathered feet. I contacted the breeder that I got the eggs from and their response was that their satin rooster must have snuck in and visited their hens. I thought satins had the black toes, beak and skin? Could these 2 be satin chicks?

On a side note, the two that didn't hatch pipped at the wrong end of their shells and then died. What causes the chick to pip the wrong end?

 

[Nemesis Prime]

On a side note, the two that didn't hatch pipped at the wrong end of their shells and then died. What causes the chick to pip the wrong end?

Sometimes they develop in the wrong position and have a hard time hatching. Malpositioned chicks usually pip but then have a hard time zipping.