Cats must wear bells to alert birds to their presence.
That's the view of Tony Juniper, chairman of Natural England, who has come up with a number of ways to revive Britain's dwindling bird population.
Speak with BBC He said on Radio 4: “Yes, I think cat bells are a good idea. Work has been done to find out their effectiveness and it certainly wouldn't do any harm.”
Mr Juniper expressed concern about the overall declining number of birds, while lamenting the loss of spring birdsong on International Dawn Chorus Day, reports De Telegraaf.
Data shows that the British bird's popularity has declined steadily since the 1970s, with numbers now around 15 percent lower than then.
It has had a significant impact on the spring choir, with Mr Juniper saying there are no more thrushes outside his home in Cambridge.
It is estimated that cats kill around 27 million birds a year, with the RSPB finding that they kill 41 per cent fewer when wearing a bell.
However, the PDSA says that bubbles can pose health risks to cats, especially if bubbles get stuck easily or even cause your cat to get stuck when urinating.
Veterinarian Shaun Walshe recommends keeping cats indoors during dawn and dusk.
Mr Juniper says the risk to birds from predators has remained largely the same, but he does say climate change has had an impact on birds' singing.
He added: “The brutal drought and heatwave that hit England in 2022 turned the soil into concrete.
“Trees drop their leaves in summer, while wetlands and ponds evaporate into rock-hard pans of dried mud.”