Fallen leaves float on top of Duck Weed as a hint of Autumn appears at Moseley Bog on September 7, 2011 in Birmingham, England. Moseley Bog is a nature reserve in the Moseley area of Birmingham and is close to the childhood home of the author J. R. Tolkien . The ancient woodland surrounding the bog was his inspiration to create the ancient forests in his books, The Lord of the Rings and The Hobbit. (Photo by Christopher Furlong/Getty Images)

The sun shines on trees that are displaying their autumn colours surrounding Palladian bridge and the lakeside Pantheon at the National Trust's Stourhead on November 3, 2010 near Warminster, England. (Photo by Matt Cardy/Getty Images)

The early morning sun bursts through the trees as cooler temperatures bring on the autumn season at Dunham Massey on on on October 11, 2010 in Lymm, England. (Photo by Christopher Furlong/Getty Images)

Autumn leaves blanket the floor of Blackley Forest on October 27, 2009, Manchester, England. (Photo by Christopher Furlong/Getty Images)

The early morning sun bursts through the trees as cooler temperatures bring on the autumn season at Dunham Massey on October 12, 2009, Altrincham, England. (Photo by Christopher Furlong/Getty Images)

Deciduous trees display autumn colours in Wendover Woods on October 11, 2009 in Buckinghamshire, England. (Photo by Oli Scarff/Getty Images) (Photo by Oli Scarff/Getty Images)

Leaves on trees can be seen changing colour in the grounds of Gatcombe Park, the private residence of Princess Anne, Princess Royal, on November 1 2007 in Gloucestershire, England. (Photo by Matt Cardy/Getty Images)

The moon is seen behind trees as the early morning sunlight breaks through leaves that are begining to change colour in Victoria Park on October 12, 2009 in Bath, England. (Photo by Matt Cardy/Getty Images)

Autumn leaves float on river at Hogonin Temple on December 4, 2008 in Kyoto, Japan. (Photo by Junko Kimura/Getty Images)

Togetsukyo Bridge is seen behind the autumn leaves along Katsura River in Arashiyama area on December 4, 2008 in Kyoto, Japan. (Photo by Junko Kimura/Getty Images)