Nope. And the RSPB doesn’t believe cats are a concern:
The UK’s largest bird charity, the Royal Society for the Protection of Birds (RSPB), is not particularly concerned about the impact of cats on the British mainland.
Cats have also been around in the UK significantly longer than many other places. Here in Hawaii they’re a plague on native species that had no such predators before.
That’s a big part of the difference. Cats in the old world are probably fine since everything there has evolved alongside them. But the native species in the Americas haven’t had housecats to worry about until relatively recently in evolutionary terms.
So are all the birds dead in the UK
Nope. And the RSPB doesn’t believe cats are a concern:
https://www.theguardian.com/environment/2022/aug/14/cats-kill-birds-wildlife-keep-indoors
And a Bristol study found cats kill the “doomed” weak and sick birds - not healthy birds: https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1474-919X.2008.00836.x
Cats have also been around in the UK significantly longer than many other places. Here in Hawaii they’re a plague on native species that had no such predators before.
That’s a big part of the difference. Cats in the old world are probably fine since everything there has evolved alongside them. But the native species in the Americas haven’t had housecats to worry about until relatively recently in evolutionary terms.