Fire-stick farming has probably been practiced for tens of thousands of years, which gives a lot of time for birds to evolve in response. Most bushfires in the top end attract raptors as-is (especially Wedge-Tailed Eagles), because there are strong thermals to ride and lots of prey is forced to move, making it easier to hunt.
> It seems Mr. Gosford shares my desire to see a video of the birds in action. And hasn't been able to produce one yet.
The remote parts of the NT are not a suburban or downtown environment. They are not drenched with folks carrying smart phones who are looking for such behaviour. It's vast, mostly empty and when a bushfire is coming what you're meant to be doing is getting the hell away from it before it catches up and kills you.
I appreciate the skepticism, but I wouldn't put bush lore on the same footing as UFOs. One requires a plausible thesis consistent with our knowledge of physics and plausible within the increasingly large scope of observed animal behaviour. The other requires civilisations with FTL travel but no X-ray machines.