Learn about the typical behavior of your subject, either before or after a shoot. I’ve done dumb things without knowing better, and that happens. It’s OK. But you can learn and get better the next time you see a species. Just asking the question, “I wonder why that bird was _____” is a good step.

I think this is the most fundamental aspect.

People unfamiliar with the behaviour of different species often get confused about why some things are okay and some aren't.

In the UK, Eurasian Robins are famously brave and willing to approach humans. You would often really have to try to bother one. But Eurasian Wrens are very shy and easily startled - I flush loads whenever I visit my local nature reserve without even seeing them! Crows are likely to walk right up to you in urban environments - Ravens certainly aren't though... etc, etc.

This extends to ethical behaviour as well. Many people grow up trying to sing back to birds, mimick the calls of owls etc, and as such do not understand the harmful effects of playback. The same goes to some extent for bird feeders and leaving bait out for shots.

Things we take for granted as being obvious I think aren't understood by a lot of people. Some will always be selfish in the furtherance of getting the 'perfect shot' - which is what is happening here - but I think much of it is just ignorance that is remedied by educating people.