It's pretty interesting, but Bebop is barely treat motivated, and mostly inside. Once you take him outside, especially in open areas, he becomes more interested in tracking movement and chasing things.

I believe it's explained by the job we've asked Greyhounds to do: see movement, get released, run after it. Once you let go, that's it, the dog needs to be motivated enough by the running animal or lure, and there's no chance to reinforce the loop once it starts!