Ameraucana Intellect (or lack thereof)

I have 8 hens, including one EE and one ameraucana. I've never had a chicken who seems ... well, I hate to phrase it this way, but ... as dumb as my ameraucana. If I go out with treats, 7 chickens come running and Miss America (her name) stands 10 feet away facing in the wrong direction. She stays in the coop on the roost late in the morning, and goes in early in the evening. If I stick my head in to inquire about her laziness she looks surprised, jumps down and runs out for about 10 seconds, then goes back in. She just seems confused and clueless all the time. Anybody else notice this with their ameraucanas?