Adder_natural-history-trip-Bulgaria-Iordan_Hristov-1460 (2)by admin24/06/202324/06/2023 Common European adder (Vipera berus), Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Name * Email * Website Comment * Save my name, email, and website in this browser for the next time I comment. Δ