“…Variation in alarm calls of Eurasian ground squirrels has been studied in the speckled ground squirrel Spermophilus suslicus [ 6 , 17 – 20 ], yellow ground squirrel S. fulvus [ 6 , 17 , 19 , 21 , 22 ], European ground squirrel S. citellus [ 1 – 3 , 5 , 19 , 23 , 24 ], Taurus ground squirrel S. taurensis [ 1 – 3 , 23 ], Anatolian ground squirrel S. xanthoprymnus [ 3 , 23 , 25 ], red-cheeked ground squirrel S. erythrogenys [ 5 ], russet ground squirrel S. major [ 26 , 27 ], Caucasian mountain S. musicus [ 25 ], little ground squirrel S. pygmaeus [ 25 , 28 ], S. alaschanicus [ 25 ], Arctic ground squirrel Urocitellus parryii [ 25 ], grey marmot Marmota baibacina [ 29 , 30 ] and Steppe marmot Marmota bobak [ 31 ]. The basic description of the alarm calls produced by ground squirrels inhabiting the Russian and Asian area included comparative study containing the following species: Urocitellus undulatus, U. parryii, Spermophilus xanthopyrmnus, S. musicus, S. pygmaeus, S. alaschanicus, S. suslicus, S. relictus, S. citellus, S. erythrogenys, S. major, S. fulvus and S. rally [ 30 , 32 ].…”