I'm starting to understand this silver color a little better, I think. lol My hen's chest isn't quite as bright as the picture shows but I don't think it's as tan as a real silver should be. Now that I know what to look for, I'll look again tomorrow and take some decent pictures.Well yes and no.... she LOOKS like a silver BUT she is missing the brown coloring. I think she is an Easter Egger.... pretty girl either way. Most small shows like a fair, allow Easter Eggers. If she was sold to you as a Birchen.... they didn't know what she was either, since silvers are RARE they would KNOW she was silver.
I'm thinking the person I bought her from wasn't familiar with the color..maybe even the breed. She has a lot of silkies and cochin bantams.
Good thing is that I traded this hen for my non-bearded Silkie hen that in my opinion was just a pet bird, so that's ok.

Her legs look to be the same color as this silver hen http://www.ameraucana.org/scrapbook_files/silverf.JPGThe official standard is not on the ABC website, just an overview of type. The silver bird is supposed to have a salmon breast. Your bird does not and seems to have some lacing going on, which lead me to believe it is an ee.
I am on a temporary lap top computer right now and the pictures do not have much definition. What color are her legs?
I'll just have to wait to see what color eggs she lays to see if she's an Ameraucana or EE.