I have one yellow chick, from a white egg.
I have two of the black and cream, they have dark non-feathered legs and the cream color is only on the neck and belly, not a continuous stripe, they hatched from brown/cream eggs.
The two with chipmunk stripes have feathered legs, one has a more distinct pattern so my guess is either one is a hybrid or they're a male and female, they hatched from brown/cream eggs.
I have two of the black and cream, they have dark non-feathered legs and the cream color is only on the neck and belly, not a continuous stripe, they hatched from brown/cream eggs.
The two with chipmunk stripes have feathered legs, one has a more distinct pattern so my guess is either one is a hybrid or they're a male and female, they hatched from brown/cream eggs.