What causes non-solid markings in Blue Ameraucana

[Still Amateur]

I thought mom and dad were both Blue Ameraucana and this (I think pullet) looks almost exactly like the hen, except for gold showing through. What would cause that? This is a hatched baby from our backyard flock so no true guarantee on the hen but she looks just like the Blue Ameraucana we got from the hatchery.

 

[Amer]

The yellow legs are proof it was an Easter Egger. Don't worry, I also bought a group of seemingly pure blue Ameraucanas looking exactly like Ameraucanas only to find out they were Easter Eggers when crossed one with a Buckeye and half the offspring were not blue or black.

 

[Amer]

I wonder if we got them from the same person?

 

[Still Amateur]

I wonder if we got them from the same person?

I got these from Cackle Hatchery last year, arriving early April.

 

[Nicks_Chicks]

I got these from Cackle Hatchery last year, arriving early April.

Did you specifically order Ameraucana? Or was it a surprise box?

 

[RoostersAreAwesome]

The male specific feathers on the shoulders mean this is a cockerel. A lot of different genes can cause leakage, even in otherwise purebred chickens (though not sure how purebred that one is considering the leg color).