Board Thread:Fun and Games/@comment-26184570-20151116032118/@comment-26084195-20151116175948

Yeah, but that would tire them out extremely quickly, especially given their greater body weight and inherently less aerodynamic form. Please don't argue with me here, I'm an ornithologist. A bird uses a lot of energy to repeatedly flap it's wings. Your parrot-men would get extremely tired extremely quickly, considerably more so than a regular bird. Furthermore, retractable wings that need to be continually extended and retracted would have less aerodynamic ability and lifting power than regular folded wings.