Maybe choosing a location where neither party could see wasn't ideal, especially as Tony tried to feel around for bandages without disturbing anything else enough to make a sound. Doing this at all wasn't ideal, it was a distraction when they should have been focused on getting Donnie out of here, but so far Tony's plans had only drawn blood and gotten them as far as a few measly feet, and he would have snarled at himself for thinking he deserved to flinch when he snatched a bandage too tightly around his hand if he wasn't already biting his tongue. He must have made a noise despite himself, because that increasingly familiar flapping had swooped closer, close enough that it echoed around the barren walls of the of the empty building. It wasn't just recursion that he was hearing, though--all of that noise, that was plenty of wings, all struggling to navigate around each other.