This is why all those "don't have outdoor cats, they kill all the birds" stories annoy me. At best they're misguided, at worse they're intentionally misleading to hide the fact that pesticides and farming practices are actually at fault. (In Europe, on other continents the story may be different) Similar to the CO2 footprint, it's another way to individualize social issues and distract from large corporate sources of…
https://www.theguardian.com/environment/2022/aug/14/cats-kil...
"A study published in April estimated that UK cats kill 160 to 270 million animals annually, a quarter of them birds. The real figure is likely to be even higher, as the study used the 2011 pet cat population of 9.5 million; it is now closer to 12 million, boosted by the pandemic pet craze"
The study didn't include animals that cats killed and abandoned in the wild, so it is likely higher still.