In a Duluth News Tribune article, Mayou acknowledges he doesn't think he should have got as close as he did.

Duluth photographer's video of 3 bobcats on frozen St. Louis River goes viral

"Looking back there are maybe some things I should have done differently," he said, explaining that the sighting was a spur-of-the-moment encounter, and he doesn't typically seek out wildlife.

"Getting really close to nature with a drone raises some ethical concerns. You don't want to frighten them and make their heart rates go up. So, looking back, I probably wouldn't have gotten quite as close as I did," he said.

But the cats seemed to behave quite calmly, and one of the bobcats in particular seemed curious, actually approaching quite close to the small drone, which Mayou said fits in the palm of his hand.

"I stayed there for maybe five minutes. It wasn't much longer than that, and then I flew out, because I didn't want to disturb them any more. But it was really magical," he said.
For an unplanned discovery of something so rarely seen, I would say it kind of dances on the edge of ethical. It's not flagrant endangerment of the animals, but it is disrupting them, whether they are afraid or curious or both. I hope we can call it a forgivable no-no.