 Birch trees of Karasiovoe Lake in northern area of Sosnovka Park. Saint Petersburg, Russia, September 24, 2015
 Karasiovoe Lake near Listvennaya Alley in Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Birches around Karasiovoe Lake near Listvennaya Alley in Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 A pond Karasiovoe Ozero in Sosnovka Park in northern Saint Petersburg. Russia, September 29, 2002
 Family of ducks in pond Karasiovoe Ozero in northern area of Sosnovka Park in Saint Petersburg. Russia, June 24, 2010
 Pond Karasiovoe Ozero and birches in northern area of Sosnovka Park in mist. Saint Petersburg, Russia, June 26, 2010
 Frozen Karasiovoe Lake in Sosnovka Park. Saint Petersburg, Russia, November 21, 2016
 Wild duck (mallard) on Karasiovoe Lake in Sosnovka Park. Saint Petersburg, Russia, November 21, 2016
 Birch bolete mushroom Leccinum schistophilum(?) in northern area of Sosnovka Park. Saint Petersburg, Russia, September 24, 2015
 Small Northern Honey mushrooms (Armillaria borealis(?)) in northern area of Sosnovka Park. Saint Petersburg, Russia, September 15, 2013
 Pond in northern part of Sosnovka Park. Saint Petersburg, Russia, September 24, 2015
 Rusty mushrooms on a dead tree in northern area of Sosnovka Park. Saint Petersburg, Russia, September 15, 2013
 Orange mushrooms on a tree stump in northern area of Sosnovka Park. Saint Petersburg, Russia, September 15, 2013
 Fly agaric mushroom (Amanita muscaria) in northern area of Sosnovka Park. Saint Petersburg, Russia, September 15, 2013
 Camping site for homeless persons(?) in northern area of Sosnovka Park. Saint Petersburg, Russia, September 15, 2013
 A small lake Sobachye Ozero (Bublik) in Sosnovka Park in northern Saint Petersburg. Russia, September 29, 2002
 Swampy area in Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Rusty brown mushrooms on a rotten tree stump in northern area of Sosnovka Park. Saint Petersburg, Russia, September 15, 2013
 Rope swing for diving to a lake in northern part of Sosnovka Park at morning. Saint Petersburg. Russia, September 9, 2007
 A small lake Sobachye Ozero (Vosmiorka, or Bublik) in Sosnovka Park in northern Saint Petersburg. Russia, September 29, 2002
 Birches in swampy area in Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Old ditch in swampy area in Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Common bonnet mushrooms (Mycena galericulata) on a rotten stump in northern area of Sosnovka Park. Saint Petersburg, Russia, September 15, 2013
 Fall colors in swampy area in Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Forest path in swampy area of Sosnovka Park. Saint Petersburg, Russia, September 24, 2015
 Birch forest in swampy area in Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Old cutting along drainage ditches in swampy area of Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Trees along drainage ditches in swampy area of Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Alley along drainage ditches in swampy area of Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Fall colors of a forest in swampy area in Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Fall colors of birches in swampy area in Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 A lake in Sosnovka Park in northern Sankt Petersburg. Russia, September 26, 2000
 Red brittlegill (Russula sp.) mushrooms on a forest path in swampy area of Sosnovka Park. Saint Petersburg, Russia, September 24, 2015
 Brick Caps mushrooms (Hypholoma lateritium, Hypholoma sublateritium) in northern area of Sosnovka Park. Saint Petersburg, Russia, September 15, 2013
 Fall colors of Alder Buckthorn (Frangula alnus) in swampy area in Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Sosnovka Park in northern Saint Petersburg. Russia, September 29, 2002
 Small birch Bolete mushroom (Leccinum variicolor) on a forest path in swampy area of Sosnovka Park. Saint Petersburg, Russia, September 24, 2015
 Northern area in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, September 26, 2015
 An alley in Sosnovka Park in northern Saint Petersburg. Russia, September 29, 2002
 Near shooting range in Sosnovka Park in northern Saint Petersburg. Russia, September 29, 2002
 Swampy area in northern part of Sosnovka Park. Saint Petersburg, Russia, October 8, 2017
 Demolished garages in northern area in Sosnovka Park. Saint Petersburg, Russia, October 3, 2017
 Ducklings in a pond in northern area of Sosnovka Park in Saint Petersburg. Russia, June 24, 2010
 Birch alley in northern area of Sosnovka Park. Saint Petersburg, Russia, June 24, 2014
 Birch forest in northern area of Sosnovka Park. Saint Petersburg, Russia, June 24, 2014
 Bublik Pond in northern area in Sosnovka Park. Saint Petersburg, Russia, October 8, 2017
 Fruit of wild calla (Water Arum, Calla palustris) taken from a swampy area of Sosnovka Park. Saint Petersburg, Russia, September 24, 2015
 View from Listvennaya Alley in northern Sosnovka Park. Saint Petersburg, Russia, September 23, 2013
 Birches near Listvennaya Alley in northern Sosnovka Park. Saint Petersburg, Russia, September 23, 2013
 A lake in northern part of Sosnovka Park. Saint Petersburg, Russia, August 7, 2001
 Trees in fog near northern end of Beloe Lake in Gatchina, a suburb of Saint Petersburg. Russia, September 27, 2015
 Forest in fog near northern end of Beloe Lake in Gatchina, a suburb of Saint Petersburg. Russia, September 27, 2015
 Dissected fruit of wild calla (Water Arum, Calla palustris) taken from a swampy area of Sosnovka Park. Saint Petersburg, Russia, September 24, 2015
 Island of Bublik Pond in northern area in Sosnovka Park. Saint Petersburg, Russia, October 8, 2017
 Birches near Bublik Pond in northern area in Sosnovka Park. Saint Petersburg, Russia, October 8, 2017
 Birch forest in northern area of Sosnovka Park in mist. Saint Petersburg, Russia, June 26, 2010
 Fruits of wild calla (Water Arum, Calla palustris) near a forest path in swampy area of Sosnovka Park. Saint Petersburg, Russia, September 24, 2015
 Boats at a pier at northern end of Beloe Lake in Gatchina, a suburb of Saint Petersburg. Russia, September 27, 2015
 Birch trees in fog near northern end of Beloe Lake in Gatchina, a suburb of Saint Petersburg. Russia, September 27, 2015
 Boats at a pier in fog at northern end of Beloe Lake in Gatchina, a suburb of Saint Petersburg. Russia, September 27, 2015
 Yellow foliage near Bublik Pond in northern area in Sosnovka Park. Saint Petersburg, Russia, October 8, 2017
 Fall colors of Bublik Pond in northern area in Sosnovka Park. Saint Petersburg, Russia, October 8, 2017
 Young northern honey mushrooms (Armillaria borealis) in Sosnovka Park. Saint Petersburg, Russia, September 13, 2017
 Young northern honey mushrooms (Armillaria borealis) in Sosnovka Park. Saint Petersburg, Russia, September 12, 2017
 Two boats in fog at Pikhta Island at northern end of Beloe Lake in Gatchina, a suburb of Saint Petersburg. Russia, September 27, 2015
 Boats at Pikhta Island at northern end of Beloe Lake in Gatchina, a suburb of Saint Petersburg. Russia, September 27, 2015
 Tawny grisette mushroom (Amanita fulva) in northern part of Sosnovka Park. Saint Petersburg. Russia, September 9, 2007
 Immature northern honey mushrooms (Armillaria borealis) on a stump in Sosnovka Park. Saint Petersburg, Russia, September 13, 2017
 Edible birch bolete mushroom, Russian name Podberyozovik, in Sosnovka Park in northern Saint Petersburg. Russia, September 29, 2002
 Young northern honey mushrooms (Armillaria borealis) on a stump in Sosnovka Park. Saint Petersburg, Russia, September 13, 2017
 Young northern honey mushrooms (Armillaria borealis) on a stump in Sosnovka Park. Saint Petersburg, Russia, September 12, 2017
 Birches in Sosnovka Park. Saint Petersburg, Russia, September 28, 2015
 Boat pier near Pikhta Island at northern end of Beloe Lake in Gatchina, a suburb of Saint Petersburg. Russia, September 27, 2015
 Birch trees in Sosnovka Park. Saint Petersburg, Russia, September 28, 2015
 Birch alley in Sosnovka Park. Saint Petersburg, Russia, September 28, 2015
 Fall colors in Sosnovka Park. Saint Petersburg, Russia, September 28, 2015
 Listvennaya Alley in Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Pond Vosmiorka or Bublik in Sosnovka Park. Saint Petersburg, Russia, September 28, 2015
 Listvennaya Alley through a forest in Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 A road in eastern part of Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Road through birch forest in Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Trees near Vosmiorka Pond in Sosnovka Park. Saint Petersburg, Russia, September 28, 2015
 A pond near Listvennaya Alley in Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Road with birch trees in Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Northern Honey mushrooms (Armillaria borealis(?)) near Kavgolovskoe Lake south from Oselki, 8 miles north from Saint Petersburg. Russia, September 23, 2015
 Reflections in a pond near Listvennaya Alley in Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Birch trees in eastern part of Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Birch forest in eastern part of Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Birch trees from Listvennaya Alley in Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Birch trees in eastern part of Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Birch forest from Listvennaya Alley in Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Birch trees from Listvennaya Alley in Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Fall colors of Listvennaya Alley in Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Young northern honey mushrooms (Armillaria borealis) with slime mold Trichia decipiens on a stump in Sosnovka Park. Saint Petersburg, Russia, September 13, 2017
 Fall colors of a pond near Listvennaya Alley in Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Fall colors of birch trees behind the war monument in Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Birch forest around a pond near Listvennaya Alley in Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Rusty colors of birch forest from Listvennaya Alley in Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
 Fall colors of birch forest from Listvennaya Alley in Sosnovka Park. Saint Petersburg, Russia, September 29, 2015
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