Firstly, there's nothing obtuse about sticking to facts. We know that a small amount of raptor persecution is happening. Approximately one case per year. Above that level there are several dozen allegations per year. Extrapolated from that, by "activists", is a narrative, wholly unsupported by factual evidence, that shoots are systematically slaughtering raptors in an attempt to drive them to extinction. That narrative is not a fact.
As with the other fellow, if you know it, report it. How many of these crimes have you reported to the police? Some of it does happen. The vast majority of "cases" have no more substance or credibility to them than big cat sightings. Even the subject of this thread has no actual evidence of a bird killed by criminal means.
The burden of evidence is the same as for everything else, and the Police are disproportionately interested in wildlife crime. They have a dedicated national unit for it and its own website. They have that level of resourcing dedicated to very few other crimes.
I'm aware that a few cases happen, and I'm aware that a lot of people repeat, embellish and fabricate stories.
You may, for whatever crackpot reasons you have, wish to associate yourself with the views of a clique of extremists who consider private property and the rule of law to be intolerable impediments to the revolution. Many of the rest of us are sane.