[A study] show[s] [that domestic cats] eat more than 2,000 species globally – including hundreds that are of conservation concern.
“Our study sheds light on the predatory habits of one of the world’s most successful and widely distributed invasive predators,” the researchers, led by Christopher Lepczyk from Auburn University in the US, wrote in the paper.
TNR
https://abcbirds.org/program/cats-indoors/trap-neuter-release/
The gist of this: “The scientific evidence regarding TNR clearly indicates that TNR programs are not an effective tool to reduce feral cat populations. Rather than slowly disappearing, studies have shown that feral cat colonies persist and may actually increase in size.”