Sky and Yak:
Adder - (Vipera berus)
Sky and Yak:
Adder (Vipera berus)
Sky and Yak:
Adder (Vipera berus)
Sky and Yak:
Male Adders in combat. (Vipera berus)
Sky and Yak:
Mating Adders (Vipera berus)
Sky and Yak:
Adder (Vipera berus)
Sky and Yak:
Adder (Vipera berus)
Sky and Yak:
Adders (Vipera berus)
Sky and Yak:
Adder (Vipera berus)
Sky and Yak:
Adder (Vipera berus) and Grass Snake (Natrix natrix)
Sky and Yak:
Adder (Vipera berus)
Sky and Yak:
Melanistic Adder (Vipera berus)
Sky and Yak:
Winter Adder (Vipera berus)
Sky and Yak:
Basking together - early Adders.
Sky and Yak:
Adder (Vipera berus)
Sky and Yak:
Adder and Sand Lizard share a basking spot.
Sky and Yak:
Adder (Vipera berus)
Sky and Yak:
Mating Adders
Sky and Yak:
Adder (Vipera berus)
Sky and Yak:
Five Adders.
Sky and Yak:
Adder Dance
Sky and Yak:
Adder Dance
Sky and Yak:
Adder (Vipera berus)
Sky and Yak:
Adder (Vipera berus)
Sky and Yak:
Adder (Vipera berus)
Sky and Yak:
Adder (Vipera berus)
Sky and Yak:
Male adder (Vipera berus).
Sky and Yak:
Pathside Adder (Vipera berus)
Sky and Yak:
Adder (Vipera berus)
Sky and Yak:
Adder (Vipera berus)
