Looks like a pullet to me . Do you have any cock or cockerels in Ameraucana of any color . FYI if you can not find another you can use another color and breed back to white . White removes all color . First generation would have color .
You know, it took me a while to figure that out...and by that time I had found and planned to ship a white cockerel from Idaho (a nice lady here on BYC offered him to me). However in the meantime I had gotten a re-homed Splash cockerel, huge with gorgeous type, that I put with the girls. Unfortunately, about a month after we got him he turned vicious, so I passed him on to someone else. But from that mating I got 4 blue cockerels and 2 blue pullets.
Whites are supposed to be split to black (but aren't always); the color of the chicks told me that this was the case for the pullets. The white cockerel I got, in the meantime, has sired a number of OE chicks over my Marans and Welsummers. ALL of them are black, some with white hackles, so he is clearly silver based black split to white.
When my blues get a little older, I'm going to breed them against my black/white splits for more whites, blacks, and blues. I'm tickled I will be able to breed all these colors as my resources for getting new stock are limited.
The original trio.
Resulting chick.
Sire of the chick I posted earlier. He's well bred but small. If I could just breed a white Am that has the type of that splash....man o man I would be happy.
