Autumn coloured leaves are pictured on a sunny autumn day in the western Austrian village of Gnadenwald, Austria October 27, 2015. (Photo by Dominic Ebenbichler/Reuters)





Autumn coloured leaves are pictured on a sunny autumn day in the western Austrian village of Gnadenwald, Austria October 27, 2015. (Photo by Dominic Ebenbichler/Reuters)





Autumn coloured leaves are pictured on a sunny autumn day in the western Austrian village of Gnadenwald, Austria October 27, 2015. (Photo by Dominic Ebenbichler/Reuters)





A deer rests by a river in Bradgate Park in Newtown Linford, central England, October 27, 2015. (Photo by Darren Staples/Reuters)





Fog hangs over trees in autumnal colors and the so-called Rakotzbruecke bridge of the Rhododendronpark Kromlau landscaped park in Kromlau, eastern Germany, on October 27, 2015. The park was created in the middle of the 19th century. (Photo by Patrick Pleul/AFP Photo/DPA)





View of late autumn colours in the Belgian Walloon region near the village of Limelette, Belgium October 27, 2015. (Photo by Yves Herman/Reuters)





Late autumn colours in vineyards mark a change in the season in Soultz in the Alsace region of eastern France, in this October 22, 2015 file photo. (Photo by Jacky Naegelen/Reuters)





Bunches of grapes hang from the vine in a vineyard in Alsace, before their harvest in Orschwihr, France, in this September 26, 2015 file photo. (Photo by Jacky Naegelen/Reuters)





Late autumn colours in vineyards mark a change in season in Neuenburg in Germany, October 29, 2015. (Photo by Jacky Naegelen/Reuters)





Late autumn colours in vineyards mark a change in season in Soultz in the Alsace region, eastern France, October 29, 2015. (Photo by Jacky Naegelen/Reuters)





Late autumn colours in wineyards mark a change in season in Neuenburg in Germany, October 29, 2015. (Photo by Jacky Naegelen/Reuters)





One-year-old Qiqi holds a ballon on a street outside Diaoyutai State Guesthouse in central Beijing, in this November 8, 2013 file photo. (Photo by Reuters/China Daily)





Autumn coloured leaves are pictured during a sunny autumn day in the western Austrian city of Innsbruck, Austria October 30, 2015. (Photo by Dominic Ebenbichler/Reuters)





A woman poses for a photograph during a sunny autumn day in the Brussels Park near the Royal Palace, Belgium, October 30, 2015. (Photo by Francois Lenoir/Reuters)





An aerial view shows a deciduous forest on a sunny autumn day in Recklinghausen, Germany, October 31, 2015. (Photo by Ina Fassbender/Reuters)





An aerial view shows a street with deciduous trees on a sunny autumn day in Recklinghausen, Germany, October 31, 2015. (Photo by Ina Fassbender/Reuters)





An aerial view shows a field with deciduous trees on a sunny autumn day in Recklinghausen, Germany, October 31, 2015. (Photo by Ina Fassbender/Reuters)





An aerial view shows a mixed forest on a sunny autumn day in Recklinghausen, Germany, October 31, 2015. (Photo by Ina Fassbender/Reuters)





An aerial view shows a deciduous forest on a sunny autumn day in Recklinghausen, Germany, October 31, 2015. (Photo by Ina Fassbender/Reuters)





An aerial view shows a mixed forest on a sunny autumn day in Recklinghausen, Germany, October 31, 2015. (Photo by Ina Fassbender/Reuters)





An aerial view shows a mixed forest on a sunny autumn day in Recklinghausen, Germany, October 31, 2015. (Photo by Ina Fassbender/Reuters)





View of late autumn colours in the garden of Annevoie, Belgium November 1, 2015. (Photo by Yves Herman/Reuters)





View of late autumn colours near the village of Annevoie, Belgium November 1, 2015. (Photo by Yves Herman/Reuters)





A view shows late autumn colours in Steenokkerzeel, Belgium November 1, 2015. (Photo by Eric Vidal/Reuters)





Late autumn colours in vineyards mark a change in season in Hartmannswiller in the Alsace region, Eastern France, November 4, 2015. (Photo by Jacky Naegelen/Reuters)





A captive long-eared owl (Strix aluco) sits in the autumn foliage in Masham, North Yorkshire, UK on October 27, 2015. (Photo by Jed Wee/Rex Shutterstock)





A photograph made avaialble on 24 October 2015 showing a young boy playing amongst the autumn leaves in a tree lined avenue in Straubing, southern Germany 23 October 2015. (Photo by Armin Weigel/EPA)





Gary Szilagyi casts his line while standing in the Susquehanna River where it meets with Fishing Creek, Monday, October 26, 2015, in Bloomsburg, Pa. (Photo by Jimmy May/Bloomsburg Press Enterprise via AP Photo)





Autumn foilage of a deciduous tree near Nyiradony, 260 kms east of Budapest, Hungary, 27 October 2015. the phenomenon of leaves changing colors in autumn occurs when the green colored Chlorophyll is detracted from the leaves into the tree's roots because of lower temperatures and less sunlight, leaving only yellow and orange pigments visible. (Photo by Zsolt Czegledi/EPA)





A camera on the forest floor points up into the autumn foliage in a forest near Springe, Germany, 29 October 2015. (Photo by Julian Stratenschulte/EPA)





An aerial view of autumn trees along the shore of a quarry pond in Cologne, Germany, 02 November 2015. (Photo by Henning Kaiser/EPA)





The sun streaks through the fall foliage at sunrise along the Potomac River in Arlington, Va., Wednesday, November 4, 2015 on a warm fall day in the nation's Capitol area. (Photo by J. David Ake/AP Photo)





Sun shines through a Japanese Maple tree at Charles Baber Cemetery in Pottsville, Pa., on Wednesday, November 4, 2015. The cemetery is the largest green space and also serves as a garden park with tree-lined walking paths, a small spring fed pond and a meditation area. (Photo by Jacqueline Dormer/The Republican-Herald via AP Photo)





A duck washes in a pond in Bayreuth, Germany, 04 Novemeber 2015. (Photo by Nicolas Armer/EPA)