A colony of feral parakeets has invaded London

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London is at the center of a very loud mystery. A colony of feral parakeets has taken over the British capital. Nobody knows how the small, green birds originating from South Asia and Central Africa came to be in the capital city. While some Londoners consider the foreign birds to be a threat to native birds, others have adopted the colorful parakeet as an unofficial city mascot.

Parakeets are a type of small parrot that is frequently kept as a pet by people all over the world. But in London, if you want to play with a parakeet, you can skip the pet store and go straight to a park.

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Since moving to London from Australia, Alysia Micali feeds the parakeets in Hyde Park every week. “I love birds, and I think it’s just really awesome to hang out with them and feed them,” Micali said. “It’s just fun to do in the city that you don’t find anywhere else and they’re wild, so they’re not in a cage or anything.” Micali warns that the birds can get a little bit aggressive if you run out of food.

After living in London for nine years, writer Nick Hunt realized that the number of parakeets was rapidly multiplying. At the last official roost count in 2012, researchers counted over 32,000 feral parakeets living in London.

Hunt teamed up with photographer Tim Mitchell on a book called “The Parakeeting of London: An Adventure in Gonzo Ornithology.”

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Hunt and Mitchell first set out to debunk some of the urban legends about how the parrots first came to London, like the story that musician Jimi Hendrix released a breeding pair on Carnaby Street after a wild night in the 1960s. “Nobody seems to have known him to keep parakeets,” Hunt said. “I think one of the reasons this myth is so potent is that they can have a kind of Jimi Hendrix quality, they’re kind of bright, garishly dressed and they have a harsh kind of grating sound that hasn’t really been heard in the city before.”

Another urban legend states that the parakeets were released on the set of the film “The African Queen” in 1950. Mitchell thinks that’s bogus. “We’ve fastidiously watched that film and there’s not a single parakeet in it,” he said.

The true origin story is significantly less dramatic. The social birds probably escaped from Victorian aviaries and adapted to city life. That has happened in many other places around the world, like Brussels and San Francisco.

“Geographically, they have a very broad range,” Mitchell said. “And we have loads and loads of trees in the cities in this country.”

Pubs, rugby clubs and even a local beer company have adopted the feral parakeet as a London mascot, but some Londoners see the loud birds as an invasive species. “People who don’t like them say they’re a threat to native British birds,” Hunt said.

The rapidly multiplying parakeets compete with smaller birds for resources like nests and food, and they’re a nuisance to local food crops. However, the British government has decided they’re not a big enough threat to cull the flock.

Hunt and Mitchell believe human activity is a bigger threat to the native bird population than the introduction of foreign parakeets. “The reason why I think kingfishers and woodpeckers are in decline isn’t because of a few tens of thousands of parakeets,” Hunt said. “It’s habitat loss, climate change and pollution.”

London’s parakeets also benefit from the warming climate. In the last 20 years, London has seen 19 of the warmest winters on record. “We got into some interesting thoughts and conversations about the meaning of what is native,” Hunt said. “Does it even make sense in an age where climate is shifting to have this idea of native?”

No matter how they originally came to London, feral parakeets are likely here to stay and to squawk, proving it’s not where you’re from, it’s where you thrive.

Wimbledon, Steeped In Tradition, Embraces Artificial Intelligence

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Match highlights at Wimbledon are selected and assembled by robots. Artificial intelligence is used to pick the most dramatic moments, making those judgments by crowd noise and player gestures.

STEVE INSKEEP, HOST:

Wimbledon is in its second week, a tennis tournament steeped in tradition and also embracing artificial intelligence. We should note that a company that makes AI, IBM, is a financial supporter of NPR on our way to letting you know that Wimbledon is using AI to produce highlights of the most exciting moments much more quickly than a human producer. But how does a computer program know what makes for good tennis? At Wimbledon, Brenda Salinas explains.

BRENDA SALINAS, BYLINE: Fans from all over the world are gathered around 18 grass tennis courts cheering on their favorite players.

(CHEERING)

SALINAS: In this match, Russian Daniil Medvedev faces off against the Italian Paolo Lorenzi.

(CHEERING)

UNIDENTIFIED ANNOUNCER: Twenty, 15.

SALINAS: But I’m not watching the tennis drinking a traditional Pimm’s cocktail. I’m in a basement where engineers use that very sound you’re hearing to power an artificially intelligent program.

ALEXANDRA WILLIS: We are in the room affectionately known as The Bunker.

SALINAS: Alexandra Willis heads up digital marketing at Wimbledon. She shows me the IBM dashboard that can automatically determine what parts of a tennis match are the most exciting for fans to watch. Every match is automatically clipped and ranked according to three categories.

WILLIS: The first is the noise of the crowd. So how they react to that particular point.

SALINAS: The computer program knows what point in the match it is.

WILLIS: So was it break point? Was it an ace? What kind of point was it?

SALINAS: And lastly, the tricky bit, what emotions the human tennis player is feeling.

WILLIS: So are they fist pumping? Are they actually looking in complete despair?

SALINAS: That’s right, the computer can tell whether a tennis player is celebrating or wincing in despair.

WILLIS: For a while, player gestures, it was picking up this movement – wiping your face – and thinking, is that some kind of celebration? Actually, it was the player saying, I want my towel. So that’s the whole beauty of this, is that we have to test it and learn it constantly.

SALINAS: Wimbledon has been using this technology for three years, but this year, it says it’s smarter than ever. The highlight reels get distributed all over Wimbledon’s digital properties, including on the Jumbotrons and its YouTube channel. IBM engineer Dave Provan shows me how it works.

DAVE PROVAN: Good crowd reaction on the volley. Looks like a set point. So the highlight will automatically do the set points, match points and other points like that.

SALINAS: The polished highlights reel comes together just two minutes after a match has ended. That’s about nine times faster than a human video editor. Plus the program can analyze matches across 18 courts. No human can do that.

So did this just come to you like this?

PROVAN: Yeah. It comes fully edited like this together.

SALINAS: No human input at all?

PROVAN: There’s human review to make sure that it looks good, but yeah, it’s basically an automatic system.

SALINAS: Tennis always follows the same structure, but the story of every match is different. That’s why Courtney Nguyen is skeptical that robots can capture the most important parts of the game.

COURTNEY NGUYEN: Yeah. That’s nuts. (Laughter).

SALINAS: Nguyen hosts a podcast for the Women’s Tennis Association where she analyzes the texture of the game.

NGUYEN: I think that when you’re actually cutting a highlight package that tells the true story of the match, there could be, you know, in oftentimes, in those situations, something very different happening that maybe even a crowd completely misses, or even a player doesn’t even notice is happening, could turn a match.

SALINAS: Computer programs are sophisticated enough to capture the emotions of a crowd or on a player’s face, but they’re not smart enough to capture the tiny moments that can make a match. At least, not yet.

(APPLAUSE)

SALINAS: At Wimbledon, I’m Brenda Salinas.