Vipera berus

There is 3 subspecies:
-vipera berus berus
-vipera berus bosniensis
-vipera berus sachalensis

some pics of the different subspecies:
-berus berus:

-berus bosniensis:
I have no pics for the moment.
-berus sachalensis:
I have no pics.
this is a smallvipers with a length between 50-60cm. (but maxima of one meter is recorded in population of the extreme north of the range.)
Distribution:


Habitat:

Diet:
small mammals, lizards, birds and frogs.

Reproduction:
Viviparous.