I've been poked fun of for this but Carlos is in a flight cage, BUT he does not chew or try to break any bars. I couldn't fit a big barred cage at the time. Jazzy is in a big barred cage they found one for her that was smaller to fit in my car. :P
I don't know how to add photos from my cell to here, I will add them from laptop later. :3
So yes flight cages can hold amazons contrary to popular opinions giggles. Carlos just uses the bars to climb, as for jazzy she is so young I doubt she'd try but we still put her in a stronger barred cage because even though she's close in size to Carlos her beak is sharper and a tad bigger.