Jeroen Speybroeck wrote:If you run through the habitat like you've been stung by 500 wasps, you are not likely to find snakes
me too!!! we are good finding active snakes, but not the basking ones (so good for Malpolon, Hemorrhois, etc... but not for vipers). Your are right, yes. But 1 viper or none in 35 years of my friends, it´s too much. They are not common there for sure (I met a kid friend of Juan Pablo that captured 74 Hemorrhois between January and april, and a lot of Malpolon, Rhinechis, Macroprotodon, etc... but 0 vipers).
I would pay for a course with Engelen and GertJan about how to find vipers!!! I am nervous like a mouse, and vipers need calm and relax