Should New Zealanders kill their kittens to save their native birds?

Domestic cats are furry murderers, argues a New Zealand businessman who is spearheading a campaign to get his fellow Kiwis to give them up.

'Save a Kaka, kill your cat' is the message of New Zealand businessman Gareth Morgan, who has started a campaign to rid the ecologically isolated islands of murderous felines in attempt to stem the dwindling numbers of native birds.

For 80 million years, the archipelago has been separated by ocean from any other land. Apart from one mouse-sized animal which went extinct around 16 million years ago, there have never been any land mammals on the islands (although there remain two species of native bat, and plenty of whales, dolphins and seals). That left an ecological niche which was largely filled by birds, being some of the few animals which could reach the islands after the seas split them from the rest of Gondwanaland.

New Zealand has some of the most unique, and clueless, birds in the world. The Kakapo is a giant green parrot which eats grass and has sex with Stephen Fry's head. The Kiwi is the size of a chicken, and lays an egg so big that the female, for the last couple of days of her incubation, has no room for any food in her stomach and must fast. The Kokako is a semi-flightless bird which sings duets in breeding pairs for hours on end and occupies the same niche as a flying squirrel.

None of them were ever exposed to predatory land mammals until the Maori arrived in the 14th century, and so they have very few natural defences against them. The introduction of mice and rats was bad enough, but once cats appeared, it was nearly over. The Kakapo and Kiwi are now critically endangered species, each limited to a few islands which have been cleared of introduced predators — but there's hope for the Kokako, as well as the Kaka and Weka which are also under threat. And one thing which would help is New Zealanders giving up their cats.

Gareth Morgan has started a campaign, Cats to Go, which is pushing for that aim. He writes:

New Zealand is the last refuge of a huge range of bird species, we’re famous for our claim to be clean and green, and some of us have recognised the huge economic benefit, let alone the ecological dividend, from achieving a Predator Free New Zealand.

But the vision is flawed. Almost half of Kiwi households have a cat (or two) making New Zealanders the world’s biggest cat owners. Cats are incredibly effective hunters and are wiping out our native birds.

… Like the parent of a bully saying that their little Johnny would not behave like that, if you’re a cat owner reading this, you are probably thinking that the above statistics don’t apply to your cat. The fact is that your furry friend is actually a friendly neighbourhood serial killer.

He doesn't actually want people to kill their cats directly — though he emphasises that "that is an option" — instead proposing that people put bells on their cats to warn birds, keep them inside, get them neutered, and, above all, not replace them when they die.

Even if it works, there is a long way to go to make New Zealand safe for its native birds. Rats, mice and possums are all widespread and causing damage of their own. But a cat-free New Zealand might still be worth fighting for.

New Zealand's killer kittens. Photograph: Cats to Go

Alex Hern is a technology reporter for the Guardian. He was formerly staff writer at the New Statesman. You should follow Alex on Twitter.

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Donald Trump's healthcare failure could be to his advantage

The appearance of weakness is less electorally damaging than actually removing healthcare from millions of people.

Good morning. Is it all over for Donald Trump? His approval ratings have cratered to below 40%. Now his attempt to dismantle Barack Obama's healthcare reforms have hit serious resistance from within the Republican Party, adding to the failures and retreats of his early days in office.

The problem for the GOP is that their opposition to Obamacare had more to do with the word "Obama" than the word "care". The previous President opted for a right-wing solution to the problem of the uninsured in a doomed attempt to secure bipartisan support for his healthcare reform. The politician with the biggest impact on the structures of the Affordable Care Act is Mitt Romney.

But now that the Republicans control all three branches of government they are left in a situation where they have no alternative to Obamacare that wouldn't either a) shred conservative orthodoxies on healthcare or b) create numerous and angry losers in their constituencies. The difficulties for Trump's proposal is that it does a bit of both.

Now the man who ran on his ability to cut a deal has been forced to make a take it or leave plea to Republicans in the House of Representatives: vote for this plan or say goodbye to any chance of repealing Obamacare.

But that's probably good news for Trump. The appearance of weakness and failure is less electorally damaging than actually succeeding in removing healthcare from millions of people, including people who voted for Trump.

Trump won his first term because his own negatives as a candidate weren't quite enough to drag him down on a night when he underperformed Republican candidates across the country. The historical trends all make it hard for a first-term incumbent to lose. So far, Trump's administration is largely being frustrated by the Republican establishment though he is succeeding in leveraging the Presidency for the benefit of his business empire.

But it may be that in the failure to get anything done he succeeds in once again riding Republican coattails to victory in 2020.

Stephen Bush is special correspondent at the New Statesman. His daily briefing, Morning Call, provides a quick and essential guide to British politics.