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Amphibians

There are eight species of amphibian currently known to be present within the Central Balkan national park. These are fire salamander (Salamandra salamandra), yellow-bellied toad (Bombina variegata), green toad (Epidalea viridis), common toad (Bufo bufo), European tree frog (Hyla arborea), marsh frog (Pelophylax ridibundus), common frog (Rana temporaria) and agile frog (Rana dalmatina).

Fire salamander (Salamandra salamandra)

Reptiles

Reptiles are well represented, with 14 species having been recorded within the national park. Most often seen by walkers are the slow worm (Anguis fragilis), viviparous lizard (Zootoca vivipara) and common wall lizard (Podarcis muralis). However, if you are lucky you may also spot green lizard (Lacerta viridis) and sand lizard (Lacerta agilis), and there are old records of Balkan wall lizard (Podarcis tauricus) and snake-eyed skink (Ablepharus kitaibelii) from the Stara Reka Reserve above Karlovo.

The Central Balkan national park also has seven species of snake. These include the common viper (Vipera berus) and nose-horned viper (Vipera ammodytes), as well as the grass snake (Natrix natrix), dice snake (Natrix tessellata), Aesculapian snake (Zamenis longissimus) and smooth snake (Coronella austriaca). Most interesting of all is the large whip snake (Dolichophis caspius), which has been recorded in both the Boatin and Stara Reka reserves.