When Natasha Walter first became curious about the birds around her, she recorded their songs on her phone and arduously tried to match each song with online recordings. After a friend recommended Merlin Bird ID, a free app, she tried it in her London garden and was delighted to discover the birds she assumed were female blackbirds – “this is how bad a birder I was” – were actually song thrushes and mistle thrushes.
“I’m obsessed with Merlin – it’s wonderful and it’s been a joy to me,” says Walter, a writer and human rights activist. “This is what AI and machine-learning have been invented for. It’s the one good thing!”