Black Chicks from EEs?

[Lwiki]

Hello!
I am reaching out to the community to help me solve a mystery. Recently, my neighbor incubated some eggs, some of which I provided to her from my flock, including my EEs. In the craziness of the hatch, it was difficult to tell which came from my EEs, but all the chicks that came from my hens were black (or primarily black)! I thought, well, maybe none of the EE eggs hatched from my girls, but she has an EE, too, and some tuquoise eggs definitely made it through. My cocks are white (Cochin bantam) and gold (silkie bantam), and hers was a lavender breed, I believe Orpington.
Recently, my BCM became broody and sat on four eggs, three of which belonged to my EEs. Three have hatched and they are ALL black (with some white from their dad, the Cochin). Two out of three of them are ABSOLUTELY from my EEs. Why are they coming out black? My cocks aren’t even black!

 

[Mamatomany123]

Easter eggers are mixed so they may have a dominant black gene being passed on to their offspring. What color are the easter eggers?

 

[chrissynemetz]

I agree, you never know what you might get hatching eggs from Easter Eggers.

 

[Lwiki]

Both my EEs had the chipmunk pattern as chicks and grew up to have the same coloring. See attached.

 

[Ebony Rose]

Easter eggers breed mysteries. Ya ne'er know what you're gonna get until they hatch.

 

[NatJ]

The black chicks probably have your white cochin for their father. Some kinds of white chickens reliably produce black chicks when crossed. It's a matter of what genes are hiding under that white appearance.