Quote: Because Ameraucanas only come in 8 accepted colors - and Partridge and its derrivitaves is not one of them. If you would like to learn more about real Ameraucanas, visit the ABC website. They have many answers for all the differences between the Breed and the mixes like you have.
http://www.ameraucana.org/
If you want to learn more about your girl there, you can visit the EE bragger's thread: https://www.backyardchickens.com/t/273489/the-ee-braggers-thread/12780#post_12113511 There are also a few more threads about AMs, EEs and all the differences here on BYC, a great way to really learn about your birds.
There is nothing wrong with your bird, she is probably a great egg layer (may even lay blue) - but she is not the breed Ameraucana. I have had a few that look like your girl in the many years I have owned hatchery Americanas/Araucanas. The hatcheries call them what will sell - but they are not Ameraucanas.
And temperament has nothing to do with the breed, sorry.