No one but the photographer really knows and the thing that always gets me is…… how does a person capture a moment like that…….. so closely? But that is the only improbability I can see here.
These animals will behave this way. So it’s possible this is real. The kitty does leave shadows where it should. The first pic….. even the donkeys shadow is a bit different but causes the kitty shadow to be beyond the margins. I think there was a time delay and the donkey did indeed return to cap off it’s displeasantries…. thus the change in shadow positions and even the presence of the dogs. I don’t believe the average dog will just sit there and stare amidst real action. But they will observe one-sided activity. Typically, they’re on their feet during “questionable events”.
And Fleck is pretty talented with a pc. If he tells me he couldn’t do that with photoshop, I tend to believe it’d take a rare individual to pull it off.
I’m willing to be wrong…. but until someone proves it….. I’m voting for authenticity.