Migrazione delle gru dall'Ungheria verso l'Africa

In this picture made available Monday, Oct. 17, 2011 a flock of common cranes (Grus grus) fly over the puszta or Hungarian steppe of Hortobagy, the largest gathering place for migrating cranes in Europe situated some 200 kms east of Budapest, Hungary, Sunday, Oct. 16, 2011. Experts counted over 90 thousand cranes living in the quiet areas of Hortobagy where they usually stay till the first frosts before leaving for Africa through Sicily. (AP Photo/MTI, Zsolt Czegledi)