Ok, it was really good field working spring and summer this year and thousands of snakes!
I will start with Serbia and lowland bosniensis, few photos of many of them this year:
Vipera berus bosniensis by Aleksandar Simović, on Flickr
Vipera berus bosniensis by Aleksandar Simović, on Flickr
Vipera berus bosniensis in situ by Aleksandar Simović, on Flickr
Vipera berus bosniensis in situ by Aleksandar Simović, on Flickr
Vipera berus bosniensis in situ by Aleksandar Simović, on Flickr
Vipera berus bosniensis in situ by Aleksandar Simović, on Flickr
Vipera berus bosniensis by Aleksandar Simović, on Flickr
Vipera berus bosniensis by Aleksandar Simović, on Flickr
some other species:
Coronella austriaca by Aleksandar Simović, on Flickr
Hyla arborea by Aleksandar Simović, on Flickr
Natrix tessellata by Aleksandar Simović, on Flickr
Hyla arborea by Aleksandar Simović, on Flickr
Pelobates fuscus by Aleksandar Simović, on Flickr
Pelobates fuscus by Aleksandar Simović, on Flickr
Spring! by Aleksandar Simović, on Flickr
hilly Serbia:
Vipera ammodytes ammodytes by Aleksandar Simović, on Flickr
Ablepharus kitaibelii by Aleksandar Simović, on Flickr
Vipera ammodytes by Aleksandar Simović, on Flickr
Lacerta viridis in situ by Aleksandar Simović, on Flickr
Lacerta viridis in situ EXPLORED 16.05.2015 by Aleksandar Simović, on Flickr
Vipera ammodytes in situ by Aleksandar Simović, on Flickr
Vipera ammodytes female by Aleksandar Simović, on Flickr
Vipera ammodytes female by Aleksandar Simović, on Flickr
Vipera ammodytes by Aleksandar Simović, on Flickr
Vipera ammodytes by Aleksandar Simović, on Flickr
Lacerta agilis bosnica by Aleksandar Simović, on Flickr
Mountain Jadovnik by Aleksandar Simović, on Flickr