Oh, sorry. I would try him with buff Brahma or light Brahma hens. He's closer to that than partridge or silver partridge, from my perspective. But he'll probably throw interesting chicks with any color of Brahma hen.
No, I don't think he is variety-less. I am guessing he is blue golden partridge, but the blue is incomplete since he has a black tail. His coloring also has both silver and gold components.
I would cross him with a partridge or dark (silver partridge) female to see what happens.
There is...
Mystic Onyx is a hybrid, so pretty variable. A lot of them have Silkie type combs. I think you are smart to wait before buying a cockerel, just in case.
Why is it sometimes that you will see a bird with both blue or blue splash and also black in its plumage? Specifically in males. You may get a blue breast and a black, beetle green tail, or the opposite. How does that work? Why does it happen?
If those are his parents, then they have some funky underlying color genetics. The mother is lavender Colombian, not partridge at all. The father looks close to golden partridge, but he has lavender or splash underparts but black in his tail and striped down the saddle and hackle feathers...
It looks to be a pullet, so far. I see a few brown feathers mixed in, but no bright red on the shoulders or hackle. It's a bit early for male specific feathering, anyway. Usually it comes in around 12 weeks or so.
I'm basing my opinion mainly on the comb, which seems pretty small to me...
The black one and the brown one with gray/blue highlights are males.
The gray one is female. The other brown one is probably female, too.
Those are best guesses based on these pictures.
It's a close call, but the longer, racier shapes and the low angles of the tails still have me thinking they are Phoenix bantams rather than Dutch bantams. Dutch bantams have tails carried at a higher angle. That's my take, anyway.
The colors are black breasted red for the female and golden for...
Why not get a mix of different types of Easter eggers? Whiting True Blues, Whiting True Greens, olive eggers, a few of each.
Whiting True Blues and also Prairie Bluebell eggers are mixed with Leghorns already. They are the same thing under different brand names from different hatcheries, and...