Friday 24 February 2012

Angry birds? These lost species have every right to be…

Human greed and thoughtlessness are responsible for the loss of hundreds of species that could have been saved, and the extinction rate is increasing alarmingly. Here are some we have already lost for ever.
John Vidal
The Observer,  19th February 2012

The Laysan crake stood six inches tall, had a yellow bill and black legs, and its cry, said one ornithologist, was "like pebbles ricocheting on a glass roof". In the 1890s there were around 2,000 of these friendly but flightless birds alive on Laysan, a tiny Pacific coral island.




Fifty years later there were none, and the bird, which ran like a chicken and was so unafraid of humans it would crawl up trouser legs, has disappeared for ever – a sad chapter in the dismal history of modern bird extinctions.
Like so many other bird species, it was made extinct not because it was wanted for its meat or feathers, or because of climate change or even a rare disease, but thanks to sheer human thoughtlessness.
First, a US businessman set up a guano-collecting station on Laysan and introduced rabbits. But the rabbits escaped and bred, eating most of the vegetation on which the bird depended. Then, in 1942, rats escaped off a US landing craft and thrived by smashing and eating its eggs. Three years later the Laysan crake was to be found only in a few museums, and immortalised on a grainy black and white BBC film.
The Laysan crake is one of around 1,000 bird species known by exhibits, written accounts, illustrations, skeletons, eggs or subfossil remains to have existed but which have vanished in the last 700 years. It joins the dodo, the great auk, the huia and species of woodpeckers, boobies, pigeons, parakeets, cormorants, owls, swifts, finches, crows, petrels and birds of almost every taxon in a remarkable new book that documents for the first time the world's known extinct birds.

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