Yesterday night, at about 11,30 P.M., on a road where in the past Aesculapian snakes were a "rather" common sighting, I found this female: unfortunately I had no time to take in situ pictures, because I noticed a car behind me. Anyway I saved the life of this female, which was not in very good health conditions.
Aesculapian snakes are very active in the night, and I also photographed (probably a couple of years ago) this baby (a female too I think), active at night in spring at rather low temperatures.
Other european snake species I've observed active in the night are:
Vipera aspis
Vipera ammodytes
Telescopus fallax
Zamenis situla
Coronella girondica
Natrix maura (but if I remember well also tessellata - in the late evening for sure - and Natrix natrix).
Incredibly, where I found the adult Aesculapian female, it was a long time that I had not seen Aesculapian any longer! They still manage to survive, not far from my home, but every year less than the previous one...