Answer:
(Note: I don't completely understand what it's saying)
I'm not 100% sure about these answers but here ya go:
The text structure, (Cause-effect/Sequence/Compare-contrast), used in High-Flying Hero as evidenced in the sentence, "Cher Ami—like all homing pigeons—felt a strong drive to fly home. Pigeons have an amazing ability to find their way. On that October day, Cher Ami winged homeward despite serious injuries. The wounded bird completed the flight with a ruined leg and a bleeding chest” helped me understand Cher Ami is a very brave and courageous bird and if it weren't for it's help, the lives of many soldiers would have been lost because Cher Ami persisted in getting home to the headquarters even after it was shot in the chest and had a wounded leg. I found the author’s choice of text structure (interesting/not interesting) because interesting, because the author maintains a kind of suspense and slowly unravels what happens, keeping the reader engaged .