The Role of Bats in Bird Immunology

Birds, birds fly as much as bats do, right? If not more. So what's the story? I mean, must there be some reason, right? Because I'm sure they make a lot of oxy, oxy, oxy radicals, right? It's like bats. The only thing I do know is that they can short circuit their fatty acid oxidation cycle or Krebs cycle to make heat because they don't generate the heat. That doesn't really explain any of the flight related things. But they fly way higher too and it's cooler. Oh, that's... Well, we need to get to Maccologists on here, right? Yeah, yeah, that's true