This is the kind of mindless, senseless, arrogant act I've come to expect from the pardy not at all paddling crowd. Harassing birds, probably disturbing turtles, all in the name of self-serving interests.
That poor bird looks absolutely terrified in that picture, as anyone would be had their 150' space been violated.

I'll bet the poor bird had to endure many minutes of fright as the kayak headed straight for her, probably not even aware of the impending encroachment. The kayaker could have slowed down, but it's not their nature, never has been. The kayaker is probably coming back from the local quick stop, with the day's beer supply.
Loons have rights too!