How many eurpeoan adders are left in the wild?

The European adder (Vipera berus) is widely distributed across Europe, and while exact population numbers are difficult to determine, it is generally considered to be common in many regions. However, local populations can be threatened by habitat loss, climate change, and other environmental factors. Conservation efforts are in place in some areas to help protect their habitats and monitor their populations. Overall, while they are not currently classified as endangered, specific population estimates can vary significantly by region.