I came to share exactly that conclusion for different reasons. Like they remember people and always attack the same ones and leave alone the same ones.
Aussie magpies are ridiculously smart, love them as an example of convergent evolution since they are not corvids but rather songbirds that have evolved to be more crow-like to fill a similar niche to corvids
I always wondered... So in theory trackers are harmless. But for a bird? They're freaking huge. Birds fold their legs up tight to sleep. It's a small fraction of their body weight on one side, all the time, for months or years... That can't just be a minor inconvenience
It's got to be like wearing a work boot on one foot and a tennis shoe on the other every day
I'd prefer they were busy trying to remove trackers than swooping.
My friend works in outdoor lighting at certain events and recently worked on a major outdoor event. Some of the shiny treasure section went missing. Eventually, they worked out it was a magpie and it was the first time world wide a bird stole parts of the exhibit