I always face-palm when people spell it that way.. I'm in 4H, and I've done Avian Bowl before and one of the questions was to spell Ameraucana. I noticed "Spell Check" doesn't accept Ameraucana, they request Americana .. that's why people also get confused a lot.
Hen in picture 2 looks like a Game Hen (American Game probably) Picture 4-5 a Barred Rock. Picture 6 EE or Ameraucana. Picture 7 maybe a Leghorn or a Game hen.