[ It's less on beating himself up and more showing his frustration at the whole thing. The Animorphs aren't Power Rangers by any means, but Marco knows his limitations. It's his thing, really, to use the limitations and not just work around them, but work with them. Except this time, there is no real way to get around the wings, and there is nothing he can do to make any real advantage to them. ]

Birds and insect morphs are just fine.

And there's another thing: in morph, I have something called thought-speak. It's basically I can talk to you in with my thoughts, within a certain distance.