I think my silkies are racist! :O

[magicpigeon]

8 Silkies
2 White cockerels
4 White pullets
1 black pullet
1 (orangey?) pullet

The white birds don't even go near the colored ones, except for the dominant rooster, and you can probably guess why

Anyone else have this problem? If it helps, the colored ones were hatched via incubator, and two of the silkie pullets were hatched by pigeon (oops babies

) The roosters aren't protective of the of the colored ones, and they are right at the bottom of the pecking order. I thought dominance was by age or size, but they're the same age as the white ones, and actually bigger! :O
What the ?!!