Your "Ameraucana" is actually an Easter Egger. Most hatcheries/feed stores mislabel Easter Eggers as Ameraucanas. In reality, if a bird doesn't fit the Ameraucana breed standard, come in a recognized Ameraucana color pattern (of which there are only seven or eight), and lay blue eggs (not green, pink, brown, etc), it is an Easter Egger.
The good news is, she's definitely a pullet. That's a very common female Easter Egger color pattern.
Your Rhode Island Red also appears to be what is generally considered to be a "Production Red". True Rhode Island Reds are a deep mahogany color and rather large. Most Rhode Island Reds that hatcheries sell are Production Reds. Production Reds, while not true Rhode Island Reds, are still excellent egg layers.
Unfortunately, I'm leaning towards rooster on this Rhode Island Red. This is based on the larger comb and patchy red coloring. However, I'm not entirely certain. Post more photos in a couple of weeks for a perhaps better guess.
