Harvest mouse Tim tennis balls

'Tim' the harvest mouse in Bristol, finding a new home in one of Wimbledon's discarded tennis balls, which were donated to the the Wildlife Trust in Avon, Glamorgan and Northumberland by the All England Lawn Tennis Club. * The balls will be used in an attempt to aid the survival of micromys minutus, Britain's smallest mammal which weighs the same as a twenty pence piece. The tiny rodent builds its nest above ground away from predators on long stalks of grass in areas of dense vegetation and reedbed, but suitable area have been in decline recently due to intensive farming methods. The conservation programme will provide artificial homes in Avon, Glamorgan and Northumberland and started on the 21st June. (Photo by David Jones - PA Images/PA Images via Getty Images)