We knew this was coming....
Conservationists turn to AI in battle to save red squirrels
https://www.bbc.com/news/articles/cd6vwy30pv8o
The gray squirrel, especially the Eastern gray from the US, commonly pushes out every other squirrel once established, whether it's the Western gray, reds, British species.
So the idea here is that in areas where they are invasive, feeders recognize them and feed contraceptive pellets to the grays and regular food to the reds. My sources tell me that JD Vance is opposed to this attempt to turn the female gray squirrels into childless cat ladies which will, clearly, end very poorly for the squirrels.