You did a good job. Your awareness to the birds' sensitivities was evident. This was a good example of a video of "how to do it" not "how not to do it".
I have been especially incensed the past few years due to nest, egg, and hatchling abandonment of uncommon species of waterfowl due to human disruptive behaviors. This probably happens with the forest species as well, but I have not seen a lot of evidence.
I apologize for any misunderstanding of negativity about you or your video on my part if there was any.
I agree about the need for a stealthy multi-rotor.
But that could make the problem worse.
Unfortunately there will always be ignorant, irresponsible owner/operators flying around.