If an eagle fought a falcon who would win? I don't know enough about birds to know for sure.
It depends on the amount of fight in the bird& tactics, an Eagle is substantially larger, which being engaged in flight & combat would be fatiguing on both, now a Peregrine falcon diving from altitude in ambush mode would more than than likely kill the Eagle ,,,you ever see a couple of ravens just kicking the hell out of an Owl in flight & that Owl is 3x's the size of those birds but it's heading to the next county line/zip code,,,
I never could figure that out