Urban jungle comes alive

Former environment secretary John Gummer's big speech to a farming conference last week was interrupted by the noise of a squawking chicken.

It wasn't a bird flu protest, but the Tory grandee's ring tone on the mobile phone he had forgotten to turn off. "I like to be reminded of the countryside wherever I am," he said by way of apology.

Now commuters on the Piccadilly Line will also be reminded of wildlife and the countryside with an array of other bird and animal calls. These are not the wacky ringtones of fellow commuters, but a new art installation.